Need help with a word problem

Question

James earns $150 per week plus $15 for each sale he makes. Last week, James earned $240. How many sales did James make?

Answer 1

Hi, Liahna!

For this problem I would start by making an equation.

150 + 15 * number of sales = James' earnings

Now let's plug in 240 for James' earnings and solve for number of sales (s)

150 + 15s = 240

Subtract 150 from both sides

15s = 90

Divide both sides by 15

s = 6

So James made 6 sales last week.

I hope this explanation helps. If it does, please up-vote to help other students.Thanks!