Zane took three typing tests and recorded the results as shown. Test

Number of

Words

Time

(minutes)

3

4

D

30

B

78

15

22

С

99

What was Zane's unit rate, in words per minute, on each test?

On which test does Zane have the highest unit rate?

Numbers aren't arranged properly so I'll try and do this. Please follow method as answer might differ cause of this

Test Number of Words Time(minutes)

A. 30. 4

B. 78. 15

C. 99. 22

Step-by-step explanation:

To calculate Zane's unit rate/number of words per minute for which each test, we divide number of words in each test by time taken for that test

For test A, unit rate = 30 words/ 4 minutes = 7.5 words per minute

For test B, unit rate = 78 words/15 minutes = 5.2 words per minute

For test C, unit rate = 99 words/22 minutes= 4.5 words per minute

From the above Zane has the highest unit rate in test A and is therefore fastest in test A

the least common denominator is 40

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step-by-step explanation: