Question

If Nelly makes 8 dollars an hour and she starts by owing her mother 7 dollars, how many hours will she need to work to pay her back and still have 49 dollars in her account. Write the equationand solve for the variable, b. (4 point)Ob=49Ob-1Ob=21/4Ob=7

Answer 1

We can post the question using the following equation:

$8x\text{ - 7 = 49}$

Nelly makes $8 an hour, but she needs to pay her mother back $7. This is the first part of the equation. She needs to have $49 at the end. So, to solve the equation, we have:

$8x\text{ = 49 + 7 = 56}$

We add 7 to both sides of the equation. Now, dividing both sides by 8, we finally have the result of x.

$\frac{8x}{8}=\text{ }\frac{56}{8}=\text{ x = 7}$

Therefore, she needs to work for 7 hours to pay her mother $7 and has $49 in her account. (In your options Ob = 7).