Ratios and Porportions 4 Questions

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Mathematics

Description

1) Express the ratio for the height of a table tennis net that is 6 in. to the height of a tennis net that is 3 ft.

a. 1 : 3

b. 6 : 12

c. 1 : 6

d. 2 : 3

2) If a over b equals 3 over 4, which other proportion must be true?

a. ba=43

b. a+bb=3+b4

c. ba=34

d. ab=43

3) If a over b equals 3 over 4, which other proportion must be true?

a. fraction numerator a plus b over denominator b end fraction equals fraction numerator 3 plus b over denominator 4 end fraction

b. fraction numerator a plus b over denominator b end fraction equals fraction numerator 3 plus a over denominator 4 end fraction

c. fraction numerator a plus b over denominator b end fraction equals 7 over 4

d. fraction numerator a plus b over denominator b end fraction equals fraction numerator 3 plus a over denominator 4 plus b end fraction

4) The extremes of a proportion are 4 and 14. Which of the following pairs could be the means of the proportion?

a. 2 and 28

b. 5 and 11

c. 6 and 9

d. 7 and 8

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Explanation & Answer

1. C 1:6 2. B. a + bb = 3+ b43=a, 4=b; 3+4*4 = 19; 3+4*4 = 19; 19 = 193. C...


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