Question

Robin has $450 to spend on home repairs. The repairman charges $65 for the initial visit and $37.50 per hour or part of an hour. How many hours of work can Robin afford?

Answer 1

Answer:

6 hours

Step-by-step explanation:

First set up the equation. Seeing the word "per", we know that this will be the variable. The repairman charges an initial fee of 37.50, so we add that fee to the total cost of every hour. To find how much Robin can spend, you set it equal to 450

65x + 37.50 = 450

Now subtract 37.50 from both sides because neither number has a variable, so you can subtract them to simplify the equation

65x = 412.5

To isolate x and find what it's equal to, divide both sides by 65 to get rid of the coefficient.

x = 6.34.

However the answer should be 6 because robin cannot afford a full or part of a 7th hour