The distance Chloe drives is a function of the amount of time she spends driving. Chloe drives 50 miles per hour. Assume she drives at a constant rate.

Question

What rule could you use to find d, the distance Chloe drove in miles, after t, the time in hours?
t, the time in hours
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Multiply by 50
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d, the distance in miles
Excellent!
You can multiply t, the time in hours, by 50 miles per hour to find d, the total distance Chloe drives in miles. How can you represent this rule with an expression?
t, the time in hours
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d, the distance in miles

Answer 1

You can represent the rule for finding the distance \( d \) that Chloe drives as the following mathematical expression:

\[ d = 50t \]

In this expression:

• \( d \) is the distance in miles,
• \( t \) is the time in hours,
• and you multiply the time \( t \) by the constant rate of 50 miles per hour.

This shows the relationship between time and distance for Chloe's driving.