Lucas says his twin baby brothers have a total weight of 15 and one eighth pounds. jackson 6 and one fourth pounds and jeremy weighs 8 and seven eighths pounds. explain how you can use estemation to tell if the total weight is reasonable

Answers

Answer 1
You can add 6 and 8 together, which make 14. 14 is only 1 number away from 15 and don’t forget the fractions, so you know its reasonable based on that, as its not far off from the total weight.
Answer 2
Final answer:

By rounding each brother's weight to the nearest whole number and adding these, we get an estimate of 15 pounds. The actual total weight, 15 and one eighth pounds, is close to this estimate, indicating that Lucas' claim about his brothers' weight is reasonable. This demonstrates how estimation can be used to quickly verify the validity of a claim.

Explanation:

Estimation is a valuable mathematical tool that can be used to assess the reasonableness of a solution. In the case of Lucas' twin baby brothers' weight, you can use rounding to estimate their total weight. Let's start by rounding each brother's weight to the nearest whole number. In this scenario, Jackson, who weighs 6 and one fourth pounds could be estimated to weigh 6 pounds, and Jeremy, who weighs 8 and seven-eighths pounds, could be estimated to weigh roughly 9 pounds.

Adding these together gives a total of 15 pounds. The actual weight of the twins, 15 and one eighth pounds, is very close to this estimation, indicating that Lucas' claim about his brothers' weight is reasonable. This approach makes effective use of estimation as a means to quickly and simply verify a given claim's feasibility.

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Related Questions

Find the distance from the point A(-2,3) to the line y=1/2x+1. Round your answer to the nearest tenth.

Answers

Final answer:

To find the distance from a point to a line, we can use the distance formula. For this problem, the distance from point A(-2,3) to the line y=1/2x+1 is approximately 2.5 units.

Explanation:

To find the distance from a point to a line, we can use the formula for the distance between a point and a line. The formula is:

d = |Ax + By + C| / √(A^2 + B^2)

In this case, the equation of the line is y = (1/2)x + 1, which can be rewritten as 2x - y + 2 = 0. Plugging in the coordinates of point A in the equation, we get:

d = |(2 * -2) + (-1 * 3) + 2| / √((2^2) + (-1^2)))

After completing the calculation, rounding the answer to the nearest tenth, the distance from point A(-2,3) to the line y = (1/2)x + 1 is approximately 2.5 units.

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Which inference can be made about the cars?

Answers

Answer:

Bout which cars?

Step-by-step explanation:

Sorry, but I think you've missed out a part of the question

solve the equation

[tex] \frac{3}{8}x - 17 = 10[/tex]

Answers

Answer:

x = 72

Step-by-step explanation:

To solve for 'x', isolate it. This means to keep 'x' on one side of the equal sign, while moving the other numbers to the other side. The numbers on the other side will tell you what 'x' equals to.

When 'moving' a number to the other side, you cancel it out where it originally is by doing reverse operations. (Reverse operation pairs are addition/subtraction and division/multiplication). To keep an equation balanced, what you do to one side you have to do to the other.

[tex]\frac{3}{8}x-17=10[/tex]        Keep 'x' on the left and move everything over.

[tex]\frac{3}{8}x-17+17=10+17[/tex]        Add 17 to both sides. "-17" cancels out on the left.

[tex]\frac{3}{8}x=27[/tex]        Simplified right side

[tex]\frac{3}{8}x/\frac{3}{8}=27/\frac{3}{8}[/tex]        Because 3/8 originally multiplies with 'x', do the reverse: divide both sides by 3/8.

[tex]x=27/\frac{3}{8}[/tex]        To divide a fraction, change to multiplication and flip the fraction's top and bottom numbers.

[tex]x=27*\frac{8}{3}[/tex]        Combine the factors into one fraction.

[tex]x=\frac{27*8}{3}[/tex]        Multiply 27 by 8 in the numerator.

[tex]x=\frac{216}{3}[/tex]        Simplify the fraction by dividing top by bottom.

[tex]x=72[/tex]        Final answer, solved for 'x'

What is the following quotient 2/13+11

Answers

Answer:

[tex]\frac{145}{13}[/tex]

Step-by-step explanation:

 2÷13+11

= (2÷13)+11

= (2÷13)+(11×13÷13)

=(2÷13)+(143÷13)

= 145÷13

The table shows values for functions f(x) and g(x) .

x f(x)=0.5x g(x)=−0.5x+1
−2 4 2
−1 2 32
0 1 1
1 12 12
2 14 0
What is the solution to f(x)=g(x) ?

Select each correct answer.



x=−2

x=−1

x = 0

x = 1

x = 2

Answers

Answer:x f(x)=0.5x g(x)=−0.5x+1

This implies that f(x)= 0.5 and

g(x)= -0.5x + 1

-0.5x + 1= 0.5

-0.5x= 0.5-1

-0.5x=-0.5

x= -0.5/-0.5

x=1

Step-by-step explanation:

Final answer:

To solve f(x) = g(x), set 0.5x equal to −0.5x + 1. Solve for x by combining like terms, which gives x = 1 as the solution.

Explanation:

To determine the solution to f(x) = g(x), we set the two functions equal to each other and solve for x.

The function f(x) is given by f(x) = 0.5x, and the function g(x) is given by g(x) = −0.5x + 1.

Setting f(x) equal to g(x), we have:
0.5x = −0.5x + 1

To solve for x, we'll combine like terms by adding 0.5x to both sides, which gives us:
0.5x + 0.5x = 11x = 1

When we divide both sides by 1, we get:

x = 1

So the solution to f(x) = g(x) is when x = 1.

Solve for t: 3x8= t+15

Answers

Hey there!

I'm going to set up the equation slightly different.

[tex](3)(8)=t+5\\24=t+5\\t+15=24\\t+15-15=24-15\\t = 9 \checkmark[/tex]

Answer:

t = 9

Step-by-step explanation:

3x8 = t + 15

24 = t + 15

t = 24 - 15

t = 9

Look at the following sequence.

128, 320, 800, 2000, . . .

If it is a geometric sequence, choose the common ratio. If it is not a geometric sequence, choose “not geometric.

Answers

Answer:

geometric sequence

Step-by-step explanation:

If the sequence is geometric then there must be a common ratio r between consecutive terms, that is

320 ÷ 128 = 2.5

800 ÷ 320 = 2.5

2000 ÷ 800 = 2.5

Since there is a common ratio r = 2.5 between consecutive terms.

Then the sequence is geometric

solve for x: 12x-20=6(x-20)-9x

Answers

Answer:

Step-by-step explanation:

12x-20=6(x-20)-9x

Opening bracket

12x - 20 = 6x - 120 - 9x

Collecting like terms

12x - 6x + 9x = -120 + 20

15x = -100

Dividing by 15

15x/15 = -100/15

x = -20/3

x = - 6 2/3

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

12x - 20 = 6( x - 20) - 9x

pay attention to the brackets as you simplify.

Let's work on it:

12x - 20 = 6x - 120 -9x

Collecting like terms to further simplify the equation.

12x - 6x + 9x = -120 + 20

15x = -100

Let's make x the subject formula by dividing through by 15

Therefore:

x = -100 / 15

Divide through by 5

x = -20 / 3

Since nothing can easily divide through, we turn it to a mixed fraction

x = - 6 2/3

( Minus six whole number, two divided by three)

Model 55% during a 10-by-10 grid

Answers

The correct answer is that 55 squares on a 10-by-10 grid would be shaded to represent 55%.

To solve this problem, we need to calculate the total number of squares on a 10-by-10 grid and then determine what 55% of that total would be.

First, we calculate the total number of squares on the grid:

[tex]\[ \text{Total squares} = 10 \times 10 \\\[ \text{Total squares}= 100 \][/tex]

Next, we find 55% of the total number of squares:

[tex]\[ \text{Number of shaded squares} = \frac{55}{100} \times 100 \][/tex]

[tex]\[ \text{Number of shaded squares} = 55 \][/tex]

So, to represent 55% on a 10-by-10 grid, we would shade 55 out of the 100 squares.

Tamara has a $50 gift card to the theater. Each movie costs $8. She can decide how many movies to see by solving the inequality 50 – 8m ≥ 0. Which is the correct solution?

Answers

Answer: Second option.

Step-by-step explanation:

Given the following Inequality provided in the exercise:

[tex]50 - 8m \geq 0[/tex]

You need to solve for "m".

Then, you can follow the steps below in order to find the solution of the inequality:

Step 1: You must apply the Subtractrion property of Inequality and subtract 50 from both sides:

[tex]50 - 8m-(50) \geq 0-(50)\\\\- 8m \geq -50[/tex]

Step 2: Now you need to apply the Division property of Inequality and divide both sides of this inequality by -8 (Since you are dividing both sides by a negative number the direction of the inequality changes). Then, you get:

[tex]\frac{- 8m}{-8} \geq \frac{-50}{-8}\\\\m\leq \frac{25}{4}\\\\m\leq6.25[/tex]

Notice that this solution matches with the second option.

b) Find the value of x. Show algebraic support.
hint: sum of the exterior angles is 360

Answers

Answer:

x = 16

Step-by-step explanation:

Given that the sum of the exterior angles is 360°

Sum the given exterior angles and equate to 360

47 + 93 + 46 + 3x + 62 + 4x = 360, that is

248 + 7x = 360 ( subtract 248 from both sides )

7x = 112 ( divide both sides by 7 )

x = 16

What is the zero of the function below?
f(x) =
[tex] 3\sqrt{x + 3} - 6[/tex]

Answers

Answer:

Step-by-step explanation:

[tex]3\sqrt{x+3}-6=0\\\\3\sqrt{x+3}=6\\\\\sqrt{x+3}=\frac{6}{3}\\\\\sqrt{x+3}=2\\\\Takesquarebothsides,\\\\x+3=2^{2}\\\\x+3=4\\\\x=4-3\\\\x=1[/tex]

a restaurant automatically add an 18% tip to the bill. if the tip was $9, what was the bill before the tip was added, in dollars ?

Answers

Answer:

$50

Step-by-step explanation:

If the tip was $9, you can find the total price by dividing 9 by .18.  .18 is 18% but as a decimal (move to the left two decimal places).  9/.18 = 50.

You can also check the answer by finding the 18% tip of $50. 50*.18=9.

Which describes a method for solving systems of equations in which you
plug in an expression for one variable written in the terms of the other?​

Answers

Substitution method in linear equations

Substitution method is used  for solving systems of equations in which you plug in an expression for one variable written in the terms of the other

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The method described is called substitution method.

In the substitution method, we start by solving one equation for one of the variables in terms of the other variable.

Then, we substitute the expression we found for that variable into the other equation.

This allows us to solve for the other variable.

Finally, we substitute the value we found for that variable back into one of the original equations to solve for the first variable.

Hence, substitution method is used  for solving systems of equations in which you plug in an expression for one variable written in the terms of the other

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draw 5 angles so that ∟2 and ∟3 are acute vertical angles,∟ 1 and ∟2 are supplementary , ∟2 and ∟5 are complementary and∟ 4 and ∟5 are adjacent.

Answers

Answer:

Figure is attached:

Acute angles are angles whose measures are less than 90°, so it needs to be less than a right angle.

Vertical angles are angles formed by two intersecting lines. When these lines intersect they form 4 angles in the middle. They are called vertical when they are opposite of each other like the figure attached.

Supplementary angles are two angles that sum up to 180° or they make up a straight line.

Complementary angles are two angles that sum up to 90°.

Adjacent angles are angles that are next to each other.

N=2pt3q2
Make p the subject

Answers

Answer:P=N/(2t3q2)

Step-by-step explanation:

N=2pt3q2

Divide both sides by 2t3q2

N/(2t3q2)=(2pt3q2)/(2t3q3)

N/(2t3q2)=p

Answer the image. Also, you don't need to explain your answer.

Answers

Answer:

5G/10

Step-by-step explanation:

Choose the equation that represents this situation. Use n to represent the
number of lawns mowed and tto represent total earnings.
Carson earns $15 for each lawn he mows. What are his total earnings?

Answers

The answer is $15L=Total

Answer:

Step-by-step explanation:

He earns $15n

Solve.

−35x+15>720

Drag and drop a number or symbol into each box to show the solution.

options:
< > -3/20, -1/4, 3/20, 1/4

Answers

Answer:

[tex]x<-\frac{1}{4}[/tex]

Step-by-step explanation:

The correct question is

Solve. −3/5x+1/5>7/20 Drag and drop a number or symbol into each box to show the solution

we have

[tex]-\frac{3}{5}x+\frac{1}{5} >\frac{7}{20}[/tex]

Solve for x

Multiply by 20 both sides

[tex]-12x+4 >7[/tex]

subtract 4 both sides

[tex]-12x >7-4[/tex]

[tex]-12x >3[/tex]

divide by -12 both sides

Remember that when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

[tex]x<-\frac{3}{12}[/tex]

simplify

[tex]x<-\frac{1}{4}[/tex]

Answer:

x < 1/4

Step-by-step explanation:

you're supposed to add or subtract the constant, and then do the same to the other constant, them bring down the coefficient and you'll get your answer.

hope this helps

You have 7 folders and you want to put the same number of pages in each folder if you have a total of pages how many pages will it be in each folder.

Answers

Answer:

7 in each folder for a total of 49 pages. 7x7=49

Step-by-step explanation:

You may put a number that is a multiple of 7 which divides in to seven folders pages evenly.

Final answer:

To determine the number of pages per folder, divide the total number of pages, which is 292,992, by the number of folders, which is seven. Each folder contains 41,856 pages.

Explanation:

The student has a total of 44,800mm shelf width, which converts to 292,992 pages at a rate of 6.54 pages/mm. To find out how many pages need to go into each of the seven folders, one would simply divide the total number of pages by the number of folders.

The calculation goes as follows:

Total pages / Number of folders = Pages per folder

292,992 pages / 7 folders = 41,856 pages per folder.

Each folder would therefore contain 41,856 pages.

In the problem above. How much money will be saved per year

Answers

Answer: i would help but i'm confused....what problem? can yhu attach it so i could help??! - Lexi@helps

Step-by-step explanation:

When Alyssa runs the 400 meter dash, her finishing times are normally distributed
with a mean of 60 seconds and a standard deviation of 2 seconds. Using the empirical
rule, what percentage of races will her finishing time be between 54 and 66 seconds?

Answers

Answer:

need more details

Step-by-step explanation:

Answer:

44

Step-by-step explanation:

answer asap i will make you brainliest!!!

Answers

ers as the elements in the rows near the bottom.

C.  

have higher atomic numbers than the elements in the rows near the bottom.

D.  

have lower atomic numbers than the elements in the rows near the bottom.

Answer:

Step-by-step explanation:

If p = 19 then
what does the
following
expression:
(2p - 10) = 2
equals?

Answers

Answer:

14

Step-by-step explanation:

(2(19)-10)=2

(38-10)=2

(28)=2

÷2. ÷2

14

According to the histogram, how many people took the test?​

Answers

Answer:

23

Step-by-step explanation:

you add all the numbers

What is the vertex of the function f (x) = x2 - 10x?
(5,-25)
(5.-75)
(-5,75)
(-5,25)​

Answers

Option A

The vertex is (h, k) = (5, -25)

Solution:

Given function is:

[tex]f(x) = x^2-10x[/tex]

The vertex form is given as:

[tex]y = a(x-h)^2+k[/tex]

where (h, k) is the vertex

Rewrite the equation in vertex form

[tex]f(x) = x^2-10x[/tex]

Complete the square for  [tex]x^2-10x[/tex]

Use the form [tex]ax^2+bx+c[/tex] to find the values of  a, b, c

a = 1 , b = -10, c = 0

Consider the vertex form of a parabola

[tex]a(x+d)^2+e[/tex]

Substitute the values of a and b into the following formula to find "d" :

[tex]d = \frac{b}{2a}\\\\d = \frac{-10}{2 \times 1}\\\\d = -5[/tex]

Find the value of "e" using the formula,

[tex]e = c - \frac{b^2}{4a}\\\\e = 0 - \frac{(-10)^2}{4 \times 1}\\\\e = -25[/tex]

Substitute the value of a, d, e into vertex form

[tex]a(x+d)^2+e\\\\1(x-5)^2-25\\\\(x-5)^2-25[/tex]

Set y equal to above equation

[tex]y = (x-5)^2-25[/tex]

Compare the above equation with vertex form

[tex]y = a(x-h)^2+k[/tex]

[tex]y = (x-5)^2-25[/tex]

We find, h = 5 and k = -25

Thus the vertex is (h, k) = (5, -25)

Each person that works at a company is given a 5-digit code. These employees must enter their codes on a keypad to enter and exit the office building. The company has 80 employees.
a) How many codes are possible if there are no restrictions?
b) What is the probability of someone entering a 5-digit code at random and gaining entry?

Answers

Answer:

A) 100000

B) 80/100000

Step-by-step explanation:

A) it is a simple matter of multiplying the possibilities of the digit it could be to the second one then to the third and so on and so forth

B) if a person were to enter a 5 digit code at random say it be 00000 then that person would have 80 out of a 100000 chance of unlocking the door as there are only 80 access codes that are correct

Final answer:

There are 100,000 possible 5-digit codes. The probability of a random 5-digit code granting access is 0.0008 or 0.08%.

Explanation:

This problem involves combinatorics and probability.

a) If each digit of the 5-digit code can be any number from 0-9, then for each digit, 10 possibilities exist. Hence the total number of possibilities for a 5-digit code would be 10*10*10*10*10, which is 100,000. So there are 100,000 possible 5-digit codes.

b) Probability is defined as the number of ways an event can occur over the total number of outcomes. If each 5-digit code is unique and assigned to only one employee, with 80 employees, there are 80 valid codes. Therefore, the probability of someone entering a 5-digit code at random and gaining entry would be 80 (the number of successful outcomes) divided by 100,000 (the total number of possible outcomes), which is 0.0008 or 0.08%.

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to prove that LMN~XYZ by the SSS similarly theorem using the information provided in the diagram, it would be enough additional information to know that.

a) LM is 3 units and XZ is 5 units
b) LM is 4 units and XZ is 6 units
c) LM is 5 units and XZ is 3 units
d) LM is 6 units and XZ is 4 units

Answers

I believe the answer would be B because it makes the most sense putting the figures scaled in my head with the already designated lengths

To prove that LMN~XYZ by the SSS similarly theorem , the measure of sides are LM is 4 units and XZ is 6 units

What are similar triangles?

If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.

Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides

Given data ,

Let the first triangle be ΔLMN

Let the second triangle be ΔXYZ

Now , the corresponding sides are

LM / XY = LN / XZ

On simplifying , we get

The corresponding sides of similar triangles are in the same ratio

So ,  LM is 4 units and XZ is 6 units

Hence , the triangles are similar by SSS theorem

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Answers quick!
Real-world problem as in write a question using the variables 0.75x-18.50=0.65x.

Answers

Answer:

0.75x-18.50=0.65x

0.65x-0.75x=-18.50

-0.10x=-18.50

x=0.0054054054

Step-by-step explanation:

Answer:

185

Step-by-step explanation:

A candy cost x dollars. It is known that a bottle of water costs 0.75 times more and a hamburger costs 0.65 times more than a candy. It is also known that a water bottle costs more than a hamburger for 18.75 dollars. Whats the price of a candy.

0.75x-18.5=0.65x

0.1x=18.5

x=185

Omg! A candy costs 185 dollars xD

1. Jason was asked to factor 25x2 - 1 on his algebra test. Which of the following
could best reflect Jason's answer?

Answers

The best reflection of Jason's answer among the given options is option : [tex]\((5x + 1)(5x - 1)\).[/tex]

The correct option is (H).

To factor [tex]\(25x^2 - 1\)[/tex], Jason likely used the difference of squares formula. This formula states that for any expressions [tex]\(a\) and \(b\), \(a^2 - b^2\)[/tex] can be factored as [tex]\((a + b)(a - b)\).[/tex]

In our case, [tex]\(a = 5x\) and \(b = 1\)[/tex]. So, we apply the difference of squares formula:

[tex]\[25x^2 - 1 = (5x)^2 - 1^2\][/tex]

[tex]\[= (5x + 1)(5x - 1)\][/tex]

This factorization is a result of recognizing that [tex]\(25x^2 - 1\)[/tex] can be written as [tex]\((5x)^2 - 1^2\),[/tex] fitting the difference of squares pattern.

Now, let's compare Jason's answer to the options given:

- Option F: [tex]\((5x-1)(5x-1)\)[/tex] is not correct. This represents the square of [tex]\(5x - 1\),[/tex] not a difference of squares.

- Option G: [tex]\((5x+1)(5x+1)\)[/tex]is not correct. This also represents the square of [tex]\(5x + 1\),[/tex] not a difference of squares.

- Option H:[tex]\((5x+1)(5x-1)\)[/tex] is correct. This represents the correct factorization using the difference of squares formula.

- Option J: Prime. This is incorrect because [tex]\(25x^2 - 1\)[/tex] can indeed be factored as [tex]\((5x + 1)(5x - 1)\).[/tex]

Therefore, the best reflection of Jason's answer among the given options is option H: [tex]\((5x + 1)(5x - 1)\).[/tex]

complete question given below:

Jason was asked to factor 25x^2-1 on his algebra test. Which of the following could best reflect Jason's answer?

F. (5x-1)(5x-1)

G. (5x+1)(5x+1)

H .(5x+1)(5x-1)

J .Prime

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