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Steve can run 3 miles in 30 minutes, at this rate how many miles can he run in 20 minutes?

Solution

Steve can run 3 miles in 30 minutes, at this rate how many miles can he run in 20 minutes?

Solution

trip 2 distance : 2

Solution steps

Given Time:

trip 1 : 30

trip 2 : 20

Given Distance:

trip 1 : 3

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 30 Distance 3

Write an equation for trip 1Distance = Speed

\cdot

Time

3 = x \cdot 30

Solve for

x, 3 = x \cdot 30 : x = \frac{1}{10}

speed : \frac{1}{10}

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed \frac{1}{10} Time 20 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = \frac{1}{10} \cdot 20

Solve for

y, y = \frac{1}{10} \cdot 20 : y = 2

trip 2 distance : 2

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