2 years ago

An appliance repairman charges $35

Mathematics

1 answer:

Schach [20]2 years ago

3 0

Answer:

3 hours.

Step-by-step explanation:

I'm assuming that you are asking how many hours the repairman worked in this problem. To find the solution, use the equation $125=35+ 30x.

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2 years ago

Find the solution(s) of the following equation. x2 = 36/49

abruzzese [7]

Answer:

$x=-\frac{6}{7} , x=\frac{6}{7}$

Step-by-step explanation:

We begin with the equation $x^2=\frac{36}{49}$

In order to get x on the left side, we need to square root both sides. As we are taking the square root of each sides, one of the sides must have a ± added to it in order to make sure that both of the solutions are found.

$\sqrt{x^2} =$ ± $\sqrt{\frac{36}{49} }$

We can then simplify this

$x=$ ± $\frac{\sqrt{36} }{\sqrt{49} }$

And once more

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Which means that our solutions are

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