Answer:
its a
Step-by-step explanation:
If 100 envelopes cost 70 cents, how much would 250 cost?
To find out how much 250 envelopes would cost, set up a proportion using the given information that 100 envelopes cost 70 cents. Cross-multiply and solve for the unknown cost, which is $1.75.
Explanation:To find out how much 250 envelopes would cost, you can use the concept of proportions. Since 100 envelopes cost 70 cents, you can set up a proportion to find the cost of 250 envelopes: 100/70 = 250/x, where 'x' represents the unknown cost. Cross-multiplying, you get 100x = 70 * 250. Dividing both sides by 100, you find that x = 175.
Therefore, 250 envelopes would cost 175 cents.
In decimal form, 175 cents is equal to $1.75.
which decimal is equivalent to the fraction 9/11?
what is 72/60 in simplest form
What multiplication fact could you use to find a number that can be divided evenly by 8 and9?
A recipe for oatmeal raisin cookies call for 1 2/3 cups of flour to make 4 dozen cookies. How many cups of flour are needed to make 6 dozen cookis?
41/18 as a mixed number
Solve for c.
3abc + b = 5
c = (5 - b)/(3ab)
c = -5/3ab
c = 2 - ab\
how does one work this out
Write the number21,989.098 in expanded form and word form
Which answer describes the type of sequence? 3, 9, 15, 21, ...
geometric
arithmetic
neither arithmetic nor geometric
Answer:
The sequence is arithmetic
Step-by-step explanation:
we know that
In an arithmetic sequence, the difference between consecutive terms is always the same and is called common difference
In this problem we have
[tex]3,9,15,21,...[/tex]
Let
[tex]a1=3, a2=9,a3=15,a4=21[/tex]
[tex]a4-a3=21-15=6[/tex]
[tex]a3-a2=15-9=6[/tex]
[tex]a2-a1=9-3=6[/tex]
The sequence is arithmetic
The common difference is equal to [tex]6[/tex]
unicorns
Math Help! I NEED IT ASAP!!!! PLEASE!! WILL UPVOTE,LIKE PAGE,LIKE POSTS AND PICS!!
Sorry this took me forever to post, I had to do someting
_________________________________________________
5.What is each number in standard form?
Drag the answers into the boxes to match each number.
1.5.78×10−115.78×10−11
2. 5.078×10−65.078×10−6
3. 5.708×10−85.708×10−8
Answer Choices:
A.0.000005078
B.0.0000000000578
C.0.000000578
D.0.0000000005078
E.0.00000005708
F.0.00000000005708
_________________________________________________
john is building a soccer table and wants it to be similar in size to a real soccer field. a full size soccer field is 336 feet long and 210 feet wide. what will be the area of his soccer table if he wants it to be 2.5 feet wide?
Answer:
[tex]10 ft^2[/tex]
Step-by-step explanation:
We are given that
Length of soccer field=336 feet
Width of soccer field=210 ft
Width of soccer table=2.5 feet
We have to find the area of soccer table which is similar to soccer field in size.
Let x be the length of soccer table.
We know that when two figures are similar then ratio of their corresponding sides are equal.
[tex]\frac{336}{x}=\frac{210}{2.5}[/tex]
[tex]x=\frac{336\times 2.5}{210}=4[/tex]
Length of soccer table=4 ft
Area of soccer table=[tex]length\times breadth[/tex]
Area of soccer table=[tex]4\times 2.5=10 ft^2[/tex]
Hence , the area of soccer table=[tex]10 ft^2[/tex]
A room has 3 lamps. From a collection of 12 light bulbs of which 5 are not working, Richard selects 3 at random and puts them in the sockets. What is the probability that he will have light? ...?
Which ratio forms a proportion with 14/42?
1/4
7/21
12/40
28/80
Answer: 7/12
Explaintion: Write at least 20 characters to explain it well.
What are the solutions of 4x2 + x = −3?
Select one:
Answer:
The correct answer is c.
Step-by-step explanation:
Given the equation
[tex]ax^{2}+bx+c=0[/tex]
The quadratic equation solves the values of ''x'' which satisfy the original equation (In the equation I replace ± by the symbol |):
[tex]\frac{-b|\sqrt{b^{2}-4ac}}{2a}[/tex]
The solutions of [tex]4x^{2}+x=-3[/tex] are the same that the solutions of [tex]4x^{2}+x+3=0[/tex]
With [tex]a=4\\b=1\\c=3[/tex] we replace this in the quadratic equation ⇒
[tex]\frac{-1|\sqrt{(1)^{2}-4(4)(3)}}{(2)(4)}[/tex] ⇒
[tex]\frac{-1|\sqrt{1-48}}{8}[/tex] ⇒
[tex]\frac{-1|\sqrt{-47}}{8}[/tex]
Given that [tex]i^{2}=-1[/tex] (imaginary numbers property)
[tex]\frac{-1|\sqrt{47i^{2}}}{8}=\frac{-1|i\sqrt{47}}{8}[/tex]
The solutions are [tex]\frac{-1+i\sqrt{47}}{8}[/tex]
and [tex]\frac{-1-i\sqrt{47}}{8}[/tex]
The correct answer is c.
Answer: C
Step-by-step explanation: I just took the test and got it right <3
Find the point on the terminal side of θ = 3pi/4 that has a y coordinate of 1.
Answer:
B
Step-by-step explanation:
hope this helps
Mark wants to create a scale drawing of the poster shown below:
A rectangle is shown. The length of the rectangle is labeled 4 centimeters. The width of the rectangle is labeled 10 centimeters.
What are the dimensions of the poster at one-half its current size?
2 cm by 10 cm
2 cm by 5 cm
8 cm by 20 cm
8 cm by 5 cm
Today you deposited $5000 into a savings account paying 12% interest. how much shouldyou have in 15 years
what is 5√28 + √63 in simplest radical form
The simplest radical form of the expression 5√28 + √63 will be 29√7.
How do convert the exponent into the simplest radical form?If the power of the variable "a" is b/c.
Then the simplest radical form of the expression will be
[tex]\rm \left ( a \right )^{\rm \frac{b}{c}} = \rm \sqrt[\rm c]{\rm a^b}[/tex]
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The expression is given below.
⇒ 5√28 + √63
Simplify the expression, then we have
⇒ 5√28 + √63
⇒ 5√(4 x 7) + √(9 x 7)
⇒ 5 x 4√7 + 9√7
⇒ 20√7 + 9√7
⇒ 29√7
The simplest radical form of the expression 5√28 + √63 will be 29√7.
More about the simplest radical form link is given below.
https://brainly.com/question/7440652
#SPJ2
Find all the cube roots of -125i in polar form. Convert all results to a+bi form. ...?
Final answer:
To find all cube roots of -125i in polar form, convert them to a+bi form by expressing -125i in polar form, finding the cube roots, and converting them to a+bi form.
Explanation:
To find all the cube roots of -125i in polar form and convert them to a+bi form, follow these steps:
Express -125i in polar form: -125i = 125∠-90°.
Find the cube roots by taking the cube roots of the magnitude and adding multiples of 360°/3 to the argument.
The cube roots of -125i in a+bi form are 5∠-30°, 5∠90°, and 5∠210°, which correspond to -2.5-4.33i, 0+5i, and 2.5-4.33i respectively.
Transversal CD←→ cuts parallel lines PQ←→ and RS←→ at points X and Y, respectively. Points P and R lie on one side of CD←→, while Q and S lie on the other side. If
m∠PXY = 64.36°, what is m∠XYS?
Answer: [tex]64.36^{\circ}[/tex]
Step-by-step explanation:
According to the question,
PQ ║ RS
And, PQ and RS are cut by the same transversal CD.
Then, By the alternative interior angle theorem,
The alternative interior angles made by the transversal CD on parallel lines PQ and RS must be congruent.
Thus, [tex]\angle PXY\cong \angle XYS[/tex]
⇒ [tex]m\angle PXY = m\angle XYS[/tex] ( by the property of congruent angles )
Here [tex]m\angle PXY = 64.36^{\circ}[/tex]
⇒ [tex]m\angle XYS = 64.36^{\circ}[/tex]
solving system using subsitution
question
a shopper purchased 8 t-shirts and 5 pairs of pants for $220.The next day he purh pair of purchased 5 tshirts and 1 pair of pants for $112.How much does each tshirt and each pair of pants cost? ...?
Can someone help me?
In the circles shown, Line AC is congruent and equal to Line RT and Line AB is congruent and equal to Line RS. Which shaded region has a larger area?
making 10 pounds of Apple Jam requires five pounds of Apple how many pounds of Apple are needed to make eight pounds of apple jam
What is the minimum value of P = x - 2y over the feasibility region defined by the constraints shown?
a) 8
b) -2
c) -16
d) -14
the answer is -14
hope this helps : )
A number close to its actual value is a(n)
Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula?
Quadratic formula: x =
Answer:
D on edge
Step-by-step explanation:
You are spreading fertilizer on a golf course at the rate of 40 pounds per 10000 square feet. If the course is 320 acres, how many tons of fertilizer will be needed?
Which situation shows a constant rate of change?
A. The height of a monkey swinging from branch to branch over time
B. The height of a bouncing ball over time
C. The number of points scored in a basketball game compared with the number of minutes played
D. The amount a person pays for gas compared with the number of gallons purchased
The correct answer is:
D) The amount a person pays for gas compared with the number of gallons purchased
Explanation:
A constant rate of change means that for every x, y increases the same amount.
In the situation "The amount a person pays for gas compared with the number of gallons purchased ," the independent quantity, or x-value, is the number of gallons, and the dependent quantity, or y-value, is the amount paid. Since gas has a set price per gallon, for every gallon purchased, the total amount paid goes up the same amount. This means it has a constant rate of change.
Which value of m will create a system of parallel lines with no solution?
y = mx – 6
8x – 4y = 12
The value of [tex]m[/tex] is [tex]2[/tex].
Given:
The given equations are:
[tex]y=mx-6[/tex] ...(i)
[tex]8x-4y=12[/tex] ...(ii)
To find:
The value of [tex]m[/tex] that will create a system of parallel lines with no solution.
Explanation:
The slope-intercept form of a line is:
[tex]y=mx+b[/tex] ...(iii)
where, [tex]m[/tex] is the slope and [tex]b[/tex] is the [tex]y[/tex]-intercept.
The slope of line (i) is [tex]m[/tex].
Equation (ii) can be rewritten as:
[tex]-4y=-8x+12[/tex]
[tex]y=\dfrac{-8x+12}{-4}[/tex]
[tex]y=2x-3[/tex]
The slope of this line is [tex]2[/tex].
We know that the slopes of parallel lines are equal. So, [tex]m=2[/tex].
Learn more:
https://brainly.com/question/14874024
Write the equation for 5x + 2y = 3 in slope-intercept form.
Answer:
Slope-Intercept Form states that in the equation of a straight line y=mx+b the slope is the number represented by m that is multiplied on the x, and b is the y intercept i.,e the point where line cut the vertical y-axis.
Given equation: 5x+2y=3 ......[1]
To convert this equation into slope intercept form;
Subtraction Property of equality states that you subtract the same number from both sides of an equation.
Subtract 5x from both sides in equation [1];
[tex]5x+2y-5x=3-5x[/tex]
Simplify:
[tex]2y=3-5x[/tex] or we can write this as;
[tex]2y=-5x+3[/tex] ......[2]
Division property of equality states that you divide the same number from both sides of an equation:
Divide by 2 from both sides of an equation in [2]
[tex]\frac{2y}{2} =\frac{-5x+3}{2}[/tex]
On simplify:
[tex]y=-\frac{5}{2}x+\frac{3}{2}[/tex]
Therefore, the given equation in slope intercept form is: [tex]y=-\frac{5}{2}x +\frac{3}{2}[/tex]