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Popular Word Problems >

Justin rode his bike.He rode 4 miles in 25 minutes.At this rate,how many miles could Justin ride in 75 minutes.

Solution

J u s t in ro d e hi s bik e . He ro d e 4 mi l es in 25 min u t es . A t t hi s r a t e, h o w man y mi l es co u l d J u s t in r i d e in 75 min u t es .

Solution

trip 2 distance : 12

Solution steps

Given Time:

trip 1 : 25

trip 2 : 75

Given Distance:

trip 1 : 4

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 25 Distance 4

Write an equation for trip 1Distance = Speed

\cdot

Time

4 = x \cdot 25

Solve for

x, 4 = x \cdot 25 : x = \frac{4}{25}

speed : \frac{4}{25}

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed \frac{4}{25} Time 75 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = \frac{4}{25} \cdot 75

Solve for

y, y = \frac{4}{25} \cdot 75 : y = 12

trip 2 distance : 12

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