xxaurorabluexx
14.06.2020 •
Mathematics
Joe swam at the rate of 4.5 miles per hour. Joseph swam at the rate of 1 12 of a mile per minute. Who was swimming faster? By how many miles per hour faster?
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Ответ:
Joseph;
85.5 miles per hour.
Step-by-step explanation:
We need to put their speeds in the same unit.
Joe swam at the rate of 4.5 miles per hour.
Joseph swam at the rate of 1 1/2 of a mile per minute (1.5 miles per minute). Let us convert this to miles per hour.
To do that, multiply it by 60 minutes:
1.5 * 60 = 90 miles per hour
Joseph swam faster, because his speed is greater than Joe's speed.
The difference in their speeds is:
90 - 4.5 = 85.5 miles per hour
Joseph swam 85.5 miles per hour faster than Joe.
Ответ:
y = 35 - 15x
Step-by-step explanation: