Maria charges a $10 base fee, plus $15 per hour for babysitting.

Which equation can be used to find h, the number of hours of babysitting that Maria will charge $160?
Responses
A 15h – 10 = 16015 h – 10 = 160
B 10h + 15 = 16010 h + 15 = 160
C (10 + 15)h = 160(10 + 15)h = 160
D 10 + 15h = 160

1 answer

To find the equation for the total charge Maria makes for babysitting, we need to consider both her base fee and her hourly rate.

Maria charges a $10 base fee, and she charges $15 for each hour of babysitting. If we let \( h \) represent the number of hours she babysits, the total charge can be represented with the following equation:

Total charge = Base fee + (Hourly rate × Number of hours) Total charge = 10 + 15h

We want to find the number of hours \( h \) that makes the total charge $160. Therefore, we set up the equation:

10 + 15h = 160

This corresponds to option D:

D. 10 + 15h = 160