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lina2011 [118]
4 years ago
7

Bob's car gets 20 miles per gallon of gas. if bob's car is traveling at a constant rate of 60 miles per hour, how many gallons o

f gas will his car use in 30 minutes? enter your answer as an exact value.
Mathematics
1 answer:
Paladinen [302]4 years ago
5 0
If Bob goes 60 miles in 1 hour, then in 30 minutes (half the time) he will go 30 miles (half the miles).  We know he uses up just over one gallon of gas because his car uses 1 gallon in 20 miles and he has driven 30 miles.  Therefore, 30/20 = 3/2 or 1.5 gallons.
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