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SajjadAhmad
Renee rides her bicycle 20 miles in m minutes. If she can ride x miles in 10 minutes, which of the following equals x?

A. m/200
B. m/20
C. m/2
D. 2m
E. 200/m

We are given that Renee’s rate is 20/m and that it’s also x/10. We can set up the proportion:

20/m = x/10

200 = mx

200/m = x

Answer: E
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SajjadAhmad
Renee rides her bicycle 20 miles in m minutes. If she can ride x miles in 10 minutes, which of the following equals x?

A. m/200
B. m/20
C. m/2
D. 2m
E. 200/m

We are given that Renee’s rate is 20/m and that it’s also x/10. We can set up the proportion:

20/m = x/10

200 = mx

200/m = x

Answer: E

Hey Scott

How do we know that we have to equate the two?

I followed unitary method and then equated after finding miles per min.

It would be great if you could explain this.
Thanks.
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Shiv2016
ScottTargetTestPrep
SajjadAhmad
Renee rides her bicycle 20 miles in m minutes. If she can ride x miles in 10 minutes, which of the following equals x?

A. m/200
B. m/20
C. m/2
D. 2m
E. 200/m

We are given that Renee’s rate is 20/m and that it’s also x/10. We can set up the proportion:

20/m = x/10

200 = mx

200/m = x

Answer: E

Hey Scott

How do we know that we have to equate the two?

I followed unitary method and then equated after finding miles per min.

It would be great if you could explain this.
Thanks.


Hey Shiv2016,

Great question.

We understand from the context that Renee is riding her bike at a constant rate. Since we are given that Renee rides her bike 20 miles in m minutes AND she can ride x miles in 10 minutes, we are essentially being told that the two rates are the same, and that is why we set them equal to each other.
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