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nata0808 [166]
3 years ago
8

Teresa runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes?

Mathematics
2 answers:
Anon25 [30]3 years ago
8 0

Answer:

\boxed {\tt 5.6 \ miles}

Step-by-step explanation:

Let's set up a proportion using the following setup:

\frac{miles}{minutes}= \frac{miles}{minutes}

We know Teresa can run 7 miles in 80 minutes.

\frac{7 \ miles}{80 \ minutes}=\frac{miles}{minutes}

We don't know how many miles she can run in 64 minutes. Therefore, she can run x miles in 64 minutes.

\frac{7 \ miles}{80 \ minutes}=\frac{x \ miles}{64 \ minutes}

\frac{7}{80} =\frac{x}{64}

We want to solve for x ( miles in 64 minutes). We must isolate x on one side of the proportion. x is being divided by 64 and the inverse of division is multiplication. Multiply both sides of the equation by 64.

64*\frac{7}{80} =\frac{x}{64}*64

64*\frac{7}{80} =x

64*0.0875=x

5.6=x

x= 5.6 miles

Teresa can run 5.6 miles in 64 minutes.

sveta [45]3 years ago
4 0

Answer:

She would run about 5.8 miles in 64 min.

Step-by-step explanation:

Let m= miles per minute

7=80m divide 80 on both sides.

0.0875=m Round

0.09 miles per minute

0.09 x 64= 5.76 round or leave it like that

5.8

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