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Chapter 11: Q21. (page 634)

Find the sum or difference.

45-715

Short Answer

Expert verified

13

Step by step solution

01

Step 1. Given Information.

The provided expression is45-715.

02

Step 2. Calculation.

Since, the denominators of the first and second fractions of the expression 45-715 are not the same, make the denominators common by multiplying the first fraction by 33.

4533-715=1215-715

Subtract the numerators of both obtained fractions to calculate the difference and simplify.

1215鈭�715=12鈭�715writedifferenceofnumeratorsoverdenominator1215鈭�715=515subtract=13

03

Step 3. Conclusion.

The difference is13.

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Most popular questions from this chapter

Make an ordered stem-and-leaf plot of the data.

12,50,72,67,33,98,44,16,91,47,42,53,33,11,60,77,35,79

The rightmost bar of the histogram above appears to be twice as long as any of the other bars. Is the frequency of the 10-12 interval twice as great as the frequency of any other interval? Explain.

In Example 2, the teacher wants to display the test scores so that the display shows all the individual scores. What type of display should the teacher use?

Tell which data display(s) allow you to identify the specified information.

The greatest value of the data set.

Make a histogram from the stem-and-leaf plot. Don not use the same intervals in your histogram as are used in the stem-and-leaf plot.

913578891022223778911357121256678888key:9|1=9.1
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