Needs to be graphed and solved please help

Answer:

the correct answer is 7*x=12 or 7x=21

Answer:

n= number

7n=21

then if it asks for an answer, just solve it like you usually would

Answer:

y=3 x=1

Step-by-step explanation:

Let's solve your equation step-by-step.

2x+1=4x−1

Step 1: Subtract 4x from both sides.

2x+1−4x=4x−1−4x

−2x+1=−1

Step 2: Subtract 1 from both sides.

−2x+1−1=−1−1

−2x=−2

Step 3: Divide both sides by -2.

−2x

−2

=

−2

−2

x=1

then

y=(2)(1)+1

Answer:

y=3

Answer:

It's form. Linear is a normal line, exponential is a curvy line, and quadratic is a u shape with the vertice on the y-axis line, making half of the u on the left quadrant and the other half on the right quadrant

Step-by-step explanation:

first is linear, second is exponential and third is quadratic

Answer:

quadratic needs to have a degree of 2, linear equations are in form y=mx+b and do not have exponents

Step-by-step explanation:

Answer:

The answer is 4

Step-by-step explanation:

Substitute 4 for x and you get 4(4)+2=18.

Two expressions are equivalent if we can arrange one of them in order to match the other.  If we evaluate the two expressions for certain values in the input, we must get the same value in the output. In this exercise, we have the following expression:

[tex]a-2.87[/tex]

There are infinitely many equivalent expressions. We can write some of them:

[tex]\bullet \ 2a-a-2.87 \\ \\ \bullet \ a-1-1.87 \\ \\ \bullet \ 5a-4a-5.87+3[/tex]

Because when simplifying these expressions we get:

[tex]a-2.87[/tex]

Answer: 4 cups

Step-by-step explanation: 40 - 26 = 16

16/4 = 4

Mr Bart can buy 4 packages of cups. $4 times 4 packages is $16 and 16 + $24 = $40. Hope this helps

Answer:

y=3x+4

Step-by-step explanation:

The equation of the straight line that passes through (-3,-5) with slope 3 can be found using

[tex]y = mx + b[/tex]

where m=3 is the slope .

We substitute the slope to get:

[tex]y = 3x + b[/tex]

We substitute the point to find b.

[tex] - 5 = 3( - 3) + b \\ - 5 = - 9 + b \\ b = - 5 + 9 = 4[/tex]

The equation of the straight line is:

[tex]y = 3x + 4[/tex]

Answer:a

Step-by-step explanation:

Answer:

The graph is decreasing everywhere, the second option.

Step-by-step explanation:

Took the test.

Answer:

B.

Step-by-step explanation:

We see (-10) repeating six times. This means the product would be 6(-10). To simplify this, 6 × (-10) = -60.

Answer:

b

Step-by-step explanation:

Answer:

The correct table is A.

Correct statement and question:

Sarah sells beaded necklaces she makes a profit of $4 on every necklace she sells which table represents the profit Sarah makes.

A.

Necklaces Sold Profit $

 4                           16

 6                           24

 8                           32

10                          40

B.  

Necklaces Sold Profit $

 4                           8

 6                           10

 8                           12

10                          14

C.

Necklaces Sold Profit $

 4                           4

 6                           8

 8                           12

10                          16

D.

Necklaces Sold Profit $

 4                           16

 6                           20

 8                           24

10                          28

Source:

North Carolina Practice Test

Step-by-step explanation:

If Sarah makes a profit of $ 4 on every necklace she sells, then:

4 necklaces = 4 * 4 = $ 16

6 necklaces = 6 * 4 = $ 24

8 necklaces = 8 * 4 = $ 32

10 necklaces = 10 * 4 = $ 40

The correct table is A.

Answer:

The answer is C Usatesprep

Step-by-step explanation:

Answer

The correct answer for this problem is

A)Cathy's grade starts out high, then drops, then evens out to what it started as.

Step-by-step explanation:

I know this because I just took the test

Answer:

a transformation could be a rotation, reflection, and/or a translation.

Step-by-step explanation:

In geometry, transformation refers to the movement of objects in the coordinate plane.

Therefore, a transformation could be a rotation, reflection, and/or a translation.

Answer:

volume is b=96cm^3

Step-by-step explanation:

Answer:

Vertical angles are angles opposite each other where two lines cross. Vertical angles are very specific - you have two intersecting lines to form two sets of vertical angles that are across from each other and congruent. Both supplementary angles and complementary angles are much broader - they do not even have to be touching or near each other, but they could be.

For this case we have:

A student plans to spend 2/5 of his earnings on his education. If you earn 25,000 this year, how much do you plan to spend on your education?

x: Let the variable that represents the student's earnings

y: Let the variable that represents the planned expenditure for education

If you plan to spend[tex]\frac {2} {5}[/tex] of your earnings on education we have:

[tex]y = \frac {2} {5} x[/tex]

According to the statement we have to:

[tex]x = 25,000[/tex]

So:

[tex]y = \frac {2} {5} (25000)\\y = 10,000[/tex]

Thus, the student plans to spend 10,000 on his education

Answer:

10,000

Step-by-step explanation:

4.

22+4x= 90

4x=90-22

4x=68

x°=17°

7.

(x-5)°+29°=180°

x-5+29=180

x= 180-24

x=156°

10.

(x+3)°+49°=90°

x= 90-52°

x=38°

Answer:

408 bags of dog foods were sold

Step-by-step explanation:

145 bags of beef flavored dog food

                           +

263 bags of cheese flavored dog food

                         =

408 bags of dog foods were sold.

Answer:

30.

Step-by-step explanation:

6 = 2 * 3

5 = 5

LCM = 2 * 3 * 5 = 30.

[tex]\bf \begin{array}{lcrrrrr} 2x-5y=11&\stackrel{\stackrel{\textit{\large first step}}{\downarrow }}{\times -3}\implies &-6x&+&15y&=&-33\\ 3x+2y=7&\times 2\implies &6x&+&4y&=&14\\\cline{3-7} &&0&+&19y&=&-19 \end{array} \\\\\\ y = \cfrac{-19}{19}\implies \boxed{y=-1} \\\\\\ \stackrel{\textit{substituting on the 1st equation}}{2x-5(-1)=11\implies 2x+5=11}\implies 2x=6\implies x = \cfrac{6}{2}\implies \boxed{x = 3} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill (3~~,~~-1)~\hfill[/tex]

Length = 12 m and width = [tex]\frac{7}{2}[/tex] m.

Solution:

Let the width of the rectangle be w.

Length of the rectangle = 2w + 5

Area of the rectangle given = 42 m²

Area of the rectangle = length × width

length × width = 42

(2w + 5) × w = 42

[tex]2w^2+5w=42[/tex]

Subtract 42 from both sides, we get

[tex]2w^2+5w-42=0[/tex]

Using quadratic formula,

[tex]$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}[/tex]

Here, [tex]a=2, b=5, c=-42[/tex]

[tex]$w=\frac{-5 \pm \sqrt{5^{2}-4 \cdot 2(-42)}}{2 \cdot 2}[/tex]

[tex]$w=\frac{-5 \pm \sqrt{25+336}}{4}[/tex]

[tex]$w=\frac{-5 \pm \sqrt{361}}{4}[/tex]

[tex]$w=\frac{-5 \pm19}{4}[/tex]

[tex]$w=\frac{-5+19}{4}, w=\frac{-5-19}{4}[/tex]

[tex]$w=\frac{14}{4}, w=\frac{-24}{4}[/tex]

[tex]$w=\frac{7}{2}, w=-6[/tex]

Dimension cannot be in negative, so neglect w = –6.

Width of the rectangle = [tex]\frac{7}{2}[/tex] m

[tex]$L=2(\frac{7}{2} )+5=12 \ m[/tex]

Hence length = 12 m and width = [tex]\frac{7}{2}[/tex] m.

To estimate the dealer's cost, calculate 90% of the base price and 87% of the options price. Add the dealer's cost of the base price and options price to find the estimated dealer's cost.

To estimate the dealer's cost, we need to find 90% of the base price and 87% of the options price.

Therefore, the estimated dealer's cost is $15,982.65.

https://brainly.com/question/29291566

#SPJ12

Answer:

3.) 200. Or in exact terms 184.3078162

4.) What?

Step-by-step explanation:

Answer:

1.27

Step-by-step explanation:

Answer:

The answer is 8 hope this helps

To evaluate the expression [tex]8 + (-25) + 16 - (-25) - 16[/tex], we need to follow the order of operations, which is:

1. Perform any operations inside parentheses or brackets. 2. Evaluate any exponents or powers. 3. Perform multiplication and division from left to right. 4. Perform addition and subtraction from left to right. Let's break down each step of the calculation:

Step 1: Parentheses or brackets There are no parentheses or brackets in the expression. Step 2: Exponents or powers There are no exponents or powers in the expression. Step 3: Multiplication and division There is no multiplication or division in the expression. Step 4: Addition and subtraction Now, we can perform the addition and subtraction from left to right:

[tex]8 + (-25) + 16 - (-25) - 16 = -17 + 16 - (-25) - 16[/tex]  simplified

[tex]8 + (-25)[/tex]  to [tex]-17) = -17 + 16 + 25 - 16[/tex] [tex]simplified[/tex] [tex]-(-25) to +25) = 8[/tex]  

([tex]simplified[/tex] [tex]-17 + 16 to -1[/tex], and [tex]-1 + 25 to +24[/tex] , and[tex]24 - 16 to 8[/tex])

Therefore, the value of the expression [tex]8 + (-25) + 16 - (-25) - 16[/tex] is 8. In summary, when evaluating the given expression, we followed the order of operations and calculated the value step by step. The final result is 8.

To know more about Parentheses visit:

https://brainly.com/question/3572440

#SPJ2

6x divided by 6 will be equal to x.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that 6x is divided by 6. The solution will be done as below:-

E = 6x / 6

Divide 6 by 6 we will get 1. The value of expression will be:-

E = x

Therefore, 6x divided by 6 will be equal to x.

To know more about an expression follow

https://brainly.com/question/723406

#SPJ2

You can do this:

20.64/16 = x/1

The numerator is the price, and the denominator is the number of roses. Using this formula, x would equal 1.29. This means Each rose cost $1.29.

Answer:

75

Step-by-step explanation:

you have 600 = 8 and you want to break it down into just 1 hour so you divide both sides by 8

600/8 = 75

Final answer:

The student was traveling at a speed of 75 miles per hour.

Explanation:

To calculate the speed in miles per hour when a student has traveled 600 miles in 8 hours, you divide the total distance by the total time taken. The formula to find speed is:

Speed = Distance / Time

So, if we plug in the values we have:

Speed = 600 miles / 8 hours = 75 miles per hour

Therefore, the student was traveling at a speed of 75 miles per hour.

Answer: 3.01 is less than 3.10

Step-by-step explanation:

Answer: 3.01 is less than 3.01

Step-by-step explanation:

3.10 is .09 more than 3.01

Answer: Eleventh Grade

Step-by-step

The ratio of tenth graders to the school's total population is 86:255 = 33.7%.

The ratio of eleventh graders to the school's total population is 18:51 = 35.3%.

Since the probability of a student being in either tenth, eleventh, or twelfth grade = 1 = 100% (that is, certainty), then the probability of a randomly drawn student being in twelfth grade is (100-33.7-35.3)% = 31.0%.

When randomly choosing one student from the whole school, it is most likely (35.3%) that the student is in the eleventh grade.