Answered

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Which of the following ordered pairs represents the unit rate? 40 35 30 25 Heartbeats 20 15 10 2 4 6 8 10 12 14 16 18 Time (s) O A. (0,0) B. (1, 1.25) O C. (4,5) D. (2, 2.5)

Sagot :

1) Let's set a table for that information

Heartbeats | Time

40 20

35 15

30 10

25 2

2) Since we want the unit rate, let's set a proportion:

40 --------20

1 -----------x

Cross multiplying it:

40x=20

x

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