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doug earns $10.50 per hour working at a restaurant on Friday he spent 1 3/4 hours cleaning 2 3/4 hours doing paper work and 1 5/12 hours serving costumers what were Doug's earnings



Answer :

Since3122015
[tex]10.50(1\frac{3}{4}+2\frac{3}{4}+1\frac{5}{12})\\10.5(3\frac{6}{4}+1\frac{5}{12})\\10.5(4\frac{6}{12}+1\frac{5}{12})\\10.5(5\frac{11}{12})\\10.5(\frac{71}{12})\\\frac{745.5}{12}\\62.125[/tex]

$62.13
iGreen
Add up the hours.

1 3/4 + 2 3/4 + 1 5/12

Convert to improper fractions:

7/4 + 11/4 + 17/12

Convert 7/4 and 11/4 into denominators of 12:

21/12 + 33/12 + 17/12

Add the numerators:

71/12

Convert to mixed number:

5 11/12

Multiply by 10.5:

5 11/12 * 10.5 = 62.125

So he earned approximately $62.13

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