Question

Sam has already worked for 27.7 hours this week. He washes cars, and can wash a car in 2.5 hours. He wants to work over 60.2 hours this week.

Answer 1

To work over 60.2 hours this week, Sam needs to wash 13 more cars.

Step-by-step explanation:

To figure out how many more hours Sam needs to work to reach his goal, we can subtract the number of hours he has already worked from his desired total. So, 60.2 hours - 27.7 hours = 32.5 hours.

Since Sam can wash a car in 2.5 hours, we can divide the number of additional hours he needs to work by the time it takes to wash a car to find out how many cars he needs to wash. So, 32.5 hours ÷ 2.5 hours = 13 cars.

Therefore, Sam needs to wash 13 more cars to work over 60.2 hours this week.

Answer 2

The question is incomplete ; we could calculate the least number of cars he can still wash for the week expressed in inequality form.

Answer:

x > 13 ; 13

Step-by-step explanation:

Given that :

Anticipated work hour for entire week = 60.2 hours

Hours worked = 27.7 hours

Rate of car wash = 2.5 per hour

Hours left to work for the week :

60.2 - 27.7 = 32.5

Hours left / unit rate of car wash

32.5 / 2.5

= 13

Hours worked +( hours left * unit rate) > anticipated hours

27.7 + 2.5x < 60.2

2.5x > 60.2 - 27.7

2.5x > 32.5

x > 32.5 / 2.5

x > 13

Hence ; Sam could still wash over 13 cars this week