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densk [106]
2 years ago
6

What is the sum of y and 7

Mathematics
1 answer:
fredd [130]2 years ago
7 0

Answer:

y+7

hope it helps:)!!!!!!!

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DeMarco works in a clothing store. He earns a base salary plus 18% commission on his sales.
irina1246 [14]

Answer:

how's

Step-by-step explanation:

how's your day how's your day

8 0
3 years ago
Christopher can paint the interior of his house in 15 hours. if he hires cynthia to help him they can do the same job together i
jenyasd209 [6]

If Christopher can paint his whole house in 15 hours, then he can get 1/15 of the job done in a single hour. If he hires Cynthia to help and they get the job done together (the sum of their efforts) in 9 hours, they can get 1/9 of the job done in a single hour. We are looking for how long Cynthia would take to do it on her own. Remember we are adding their efforts together and setting that equal to the total, so the equation is \frac{1}{15}+\frac{1}{x}=\frac{1}{9}. What we are going to do here, what makes the most sense in solving for x, is to move the term with x in it to the other side of the equation and move the 1/9 over by subtraction. \frac{1}{15}-\frac{1}{9}=-\frac{1}{x}. Of course before we can subtract those 2 fractions we need a common denominator, which happens to be 45: \frac{3}{45}-\frac{5}{45}=-\frac{1}{x} and -\frac{2}{45}=-\frac{1}{x}. We will cross multiply to get 2x = 45 and divide to find that it takes Cynthia 22.5 hours to do the job if she had to do it alone.

7 0
2 years ago
Your help would be appreciated
Schach [20]

Answer:

I think its the 1st one, but I'm not sure

8 0
2 years ago
Can somebody explain PEMDAS (Order of Operations) to me?
s344n2d4d5 [400]

It's simple.

P - Parentheses

E - Exponents

D - Division

M - Multiplication

A - Addition

S - Subtraction

Whenever we have an expression or problem that involves these operations. We solve them according to the order given above.

6 0
3 years ago
What is the square rout of 56
Mars2501 [29]
\sqrt{56}=\sqrt{4\cdot14}=\sqrt4\cdot\sqrt{14}=2\sqrt{14}
6 0
3 years ago
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