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49 Jessica skated 4 laps in 82 seconds. Which of the following is an equivalent rate of skating??A6 laps in 120 secondsB10 laps in 205 secondsC 6 laps in 130 secondsD10 laps in 215 seconds

49 Jessica skated 4 laps in 82 seconds. Which of the following is an equivalent rate-example-1
User Alex Beals
by
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1 Answer

5 votes

ANSWER

B. 10 laps in 205 seconds

Step-by-step explanation

If we write the rate of laps to seconds as a fraction we have:


(4)/(82)=(2)/(41)

I simplified the fraction and got 2/41. An equivalent rate must give the same simplified fraction. For option B:


(10)/(205)=(2)/(41)

We can reduce both rates to the same rate: 2 laps every 41 seconds. Therefore, these two rates are equivalent.

User Carey Halton
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8.5k points
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