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MatroZZZ [7]
3 years ago
14

Sarah is training for a bike race. She rides her bike 5 3/4 miles in 1/3 hour.What is Sarah's rate miles per hour?

Mathematics
2 answers:
anyanavicka [17]3 years ago
6 0

Answer:

Step-by-step explanation:

Answer:

Sarah's rate is 17 \frac{1}{4} miles per hour.

Step-by-step explanation:

we can use proportion to solve this;

Let x represent sarah's rate miles per hour

5 3/4 miles = 1/3 hour

    x             = 1 hour

cross-multiply

5 3/4  = 1/3 x

but 5 3/4 =\frac{23}{4}

\frac{23}{4}  =  \frac{x}{3}

cross- multiply

4x = 23× 3

4x =69

Divide both-side of the equation by 4

\frac{4x}{4} = \frac{69}{4}

(On the left-hand side of the equation, 4 at the numerator will cancel-out 4 at the denominator while on the right-side of the equation 69 will be divided by 4)

x  =  17 \frac{1}{4} miles

Therefore Sarah's rate is 17 \frac{1}{4} miles per hour.

Alik [6]3 years ago
4 0

Answer:17 1/4 miles per hour  



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