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John drives 10 1/2 miles every 1/20 hour. How many miles can he drive in 5 hours?

I am trying to help my daughter with this problem. can you show me step b y step please. thank you :)

User JamesonW
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2 Answers

5 votes


\text{Hello there!}\\\\\text{We're trying to find how many miles he can drive in 5 hours}\\\\\text{We know that he drives 10.5 miles in 1/20 of an hour}\\\\\text{We need to find how much he drives in an hour, so you have to}\\\text{multiply 10.5 by 20}\\\\10.5\cdot20=210\\\\\text{In 1 hour, he drives 210 miles}\\\\\text{Now, multiply 210 by 5 to see how much he drives in 5 hours}\\ \\210\cdot5=1050\\\\\large\boxed{\text{John drives 1,050 mile in 5 hours}}

User Mike Laren
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2 votes

Answer: 1050 miles in 5 hours

Explanation: there are 20 1/20 per hour

10 1/2 x 20 = 210 miles per hour

210 * 5 =1050 miles in 5 hours

User Matzi
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