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34 votes
34 votes
Nancy and Elsa like to ride bikes. The equation m=12h represents the approximate number of mies m Nancy bikes in h hours . The equation m = 9h represents the approximate number of miles Elsa bikes in h hours . How much longer will it take Elsa to bike 72 miles than Nancy?

User Yaroslav Nikitenko
by
2.8k points

1 Answer

12 votes
12 votes

Answer:

  • 24 hours

Explanation:

Nancy bikes 12h miles in h hours, Elsa bikes 9h miles in h hours.

The difference in the distance is:

  • 12h - 9h = 3h

The time required to bike 72 miles difference:

  • 3h = 72
  • h = 72/3
  • h = 24
User Kushtrimh
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3.2k points