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Sam drives to work. When she averages 20mph, it takes 40 minutes. If she manages to average 30mph, how long will it take?
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3 votes
Sam drives to work. When she averages 20mph, it takes 40 minutes. If she manages to average 30mph, how long will it take?

User Carlos Castillo
by
3.6k points

2 Answers

2 votes
15minutes
40min=2mile
30/2
User Sebastien Bianchi
by
4.4k points
5 votes
60Mph

Because if 20 miles is equal to 40 minutes. 10 more miles would make half of 40 (20), adding it all together would make it 60MPH. Hope this helps!
User Jackreichert
by
4.2k points
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