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Use the chart for the question.4. CJ reads 12 pages in one book and 8 pages in another.How long does it take him to read all of the pages? Explain.

Use the chart for the question4 CJ reads 12 pages in one book and 8 pages in anotherHow long does it take him to read all of the pages Explain class=

Respuesta :

First find the total number of pages read

12 +8 = 20 pages

We can use ratios to determine how long it will take

6 pages 20 pages

------------ = -----------

21 minutes x minutes

Using cross products

6 * x = 21 * 20

6x = 420

Divide each side by 6

6x/6 = 420/6

x =70

It will take 70 minutes.

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