Formative Test Prep

Question

Nola is an electrician. She charges her customers $85 and $35 for each hour of labor. While doing work for a local business, the total charges for the work was $226. Which equation could be used to determine the number of hours (h) she worked at the local business?

A.) 35h - 85 = 225

B.) 85h - 35 = 225

C.) 35h + 85 = 225

D.)85h + 35 = 225

Answer 1

Think about each aspect of the problem. When Nola drives out to the job, before she starts working at all, how much does she make?

Then, when Nola starts working, the problem states that she gets "$35 for each hour of labor" meaning that if she works 1 hour she gets $35, if she works 2 hours, she gets $35 plus $35 (or $70), or if she works 3 hours she gets $105. So we can calculate how much she gets by multiplying 35 by the number of hours she works.

So to find out the total she would get, we add the amount she gets for showing up at the job site and the amount she gets for working "h" hours.

And we are told the total is $225.

Which equation says that?

Answer 2

The only charge than can change is the $35 / hour.

Which equation has that?