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fomenos
3 years ago
7

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
Mathematics
2 answers:
sweet [91]3 years ago
6 0
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
Kruka [31]3 years ago
3 0
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

$62.13
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Answer:

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  2. Multiply:                                                                                                             f(-3) = -9 - 3
  3. Subtract:                                                                                                            f(-3) = -12

g(-2)

  1. Substitute in <em>x</em> [Function g(x)]:                                                                         g(-2) = 3(-2)³ + 5
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  3. Multiply:                                                                                                            g(-2) = -24 + 5
  4. Add:                                                                                                                   g(-2) = -19
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