Problem

For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 225 miles in 3 hours, how many miles does it travel in 7 hours?
$◻$ miles

Answer

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Hide Steps

Answer

$◻$ miles

Steps

Step 1 ： $d = k \cdot t$

Step 2 ： $225 = k \cdot 3$

Step 3 ： $k = \frac{225}{3} = 75$

Step 4 ： $d = 75 \cdot 7 = 525$

Step 5 ： $◻$ miles

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