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pickupchik [31]
3 years ago
5

What is 7-2x when x= -3

Mathematics
1 answer:
Annette [7]3 years ago
5 0

Step-by-step explanation:

When x=-3

7-2(-3)=7-(-6)

=7+6

=13

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Help please thank you!
Harrizon [31]

Answer:b

Step-by-step explanation:ur welcome

6 0
2 years ago
One number was divided by 2, followed by this quotient being multiplied by 4. next, the product was added to 9. the total sum wa
grin007 [14]

Answer:

Step-by-step explanation:

First, turn the word problem into an equation:

n(a number) was divided by 2

\frac{n}{2}

followed by this quotient beying multiplied by 4

\frac{n}{2}*4

the product was added to 9

\frac{n}{2}*4+9

the total sum was 25

\frac{n}{2}*4+9 = 25

use PEMDAS to solve the equation

subtract 9 on both sides

\frac{n}{2}*4 = 16

cancel the 2 and the 4 using factorization

n*2 = 16

divide 2 on both sides

n = 8

7 0
2 years ago
The Math Club is selling shirts to raise money for a Pi Day Convention. Short sleeve shirts are $5 and long sleeved shirts are $
Sladkaya [172]
<h2>Answer:</h2>

# short sleeved shirts sold  is 50

# long sleeved shirts sold 35

<h2>Step-by-step explanation:</h2>

First, you need to set up the equation.

(5x)+10*(85-x)=600

5x+850-10x=600

-5x+850=600

-5x=600-850

-5x=-250

x=50


After you solve the equation, you know, that 50 short sleeve t-shirts were sold. Now, you need to find out how many long sleeved t-shirts were sold. 85-50=35. Now you know, that there were 35 long sleeved t-shirt sold.

You can now check your answers. 50*5 + 35*10=600

That is correct.

I hoped I helped you. I will be really glad, if you mark my answer with brainliest.

3 0
2 years ago
What is the result of adding 2x+7y=4 and -2x-8y=-2
Anika [276]

Answer:

x = 2 + 3.5y

Step-by-step explanation:

6 0
2 years ago
A circle has a radius of 9 ft. Find the length of s of the arc intercepted by a central angle of 97 degrees. Do not round any in
Sedaia [141]
\bf \textit{arc's length}\\\\&#10;s=\cfrac{\theta \pi r}{180}\quad &#10;\begin{cases}&#10;r=radius\\&#10;\theta =angle\ in\\&#10;\qquad degrees\\&#10;------\\&#10;r=9\\&#10;\theta = 97&#10;\end{cases}\implies s=\cfrac{97\cdot \pi \cdot 9}{180}
3 0
3 years ago
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