Question 1056239: At 11:00 am 37 cars were washed. At 2:00pm 55 cars were washed. How many cars were washed at 8:00am? What is the rate of cars being washed?
Answer by ikleyn(53765)   (Show Source):
You can put this solution on YOUR website! .
At 11:00 am 37 cars were washed. At 2:00pm 55 cars were washed. How many cars were washed at 8:00am?
What is the rate of cars being washed?
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For three hours from 11:00 am to 2:00 pm 55-37 = 18 cars were washed.
Assuming that the rate remains the same, we can estimate that for three hours from 8:00 am to 11:00 am the same number of cars was washed: 18.
Hence, the number of cars were washed at 8:00 am was 37-18 = 19.
Also, the rate is 18 cars per 3 hours, or 6 cars per hour.
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