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Scott likes to run long distances. He can run 20 km in 85 minutes. He wants to know how many minutes (m) it will take him to run 52 km at the same pace. Which proportion could Scott use to model this situation?
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Scott likes to run long distances. He can run 20 km in 85 minutes. He wants to know how many minutes (m) it will take him to run 52 km at the same pace.

Which proportion could Scott use to model this situation?
Please choose from one of the following options.

m/20=85/52

m/85=52/20

Solve the proportion to determine how long it will take Scott to run 52 km.
___ minutes
PLEASE ANSWER how long it will take Scott to run 52 km

User Pietro La Spada
by
8.5k points

1 Answer

2 votes
When you set up the proportion, you have to make sure that the km match up and the min match up.

m/85=52/20 is the correct answer.

To solve, cross multiply and solve for m.

20m=4,420
m=221

It will take 221 minutes.
User McMurphy
by
8.0k points
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