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You are driving home on a weekend from school at 55 mi/h for 110 miles. It then starts to snow and you slow to 35 mi/h. You arrive home after driving 4 hours and 15 minutes. How far is your hometown from school?
a.180 mi
b.190 mi
c.200 mi
d.210 mi

Respuesta :

SOLUTION:

If you drive at 55 mi/h for 110 miles, this means you drovefor 110 / 55 = 2 hours

Your total driving time is 4 hours and 15 minutes which meansthat you drove 2 and 15 minutes at the rate of 35 mi/h

2 hours and 15 minutes = 2×60 + 15 = 135minutes

35 miles / 60 minutes × ( 135 minutes) = 78.75miles

So total miles driven is 78.75 + 110 =188.75 miles

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