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3241004551 [841]
3 years ago
7

Last semester, Mr. Dean had 8 students who built a sailboat in 160 working hours. The time that

Mathematics
1 answer:
sveta [45]3 years ago
4 0

Answer:

106.67 hours

Step-by-step explanation:

Total hours

160 * 8 = 1,280

Hours for group of 12

1280 / 12 = 106.6666666667

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General Formulas and Concepts:

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Order of Operations: BPEMDAS

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Equality Properties

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Step-by-step explanation:

<u>Step 1: Define Systems</u>

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<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    4x - (-8x) = 3
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  3. Combine like terms:           12x = 3
  4. Isolate <em>x</em>:                              x = 3/12
  5. Simplify:                               x = 1/4

<u>Step 3: Solve for </u><em><u>y</u></em>

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Using the distrubutive proberty an experstion equvalent to 45+72
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solution:

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