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Mama L [17]
3 years ago
7

Chris sells encyclopedias and earns $45 for each set he sells. How many sets did he sell if he earned $540 last week?

Mathematics
2 answers:
Helen [10]3 years ago
3 0

1 encyclopedia = 45$

x encyclopedias = 540$

x = 540*1/45 = 540/45 = 12 encyclopedias

Elodia [21]3 years ago
3 0

Answer:12

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The angles (5x - 5)° and (6x + 31)° are supplementary angles.

Supplementary Angles add up to 180°.

Therefore we have the equation:

5x - 5 + 6x + 31 = 180             <em>combine like terms</em>

(5x + 6x) + (-5 + 31) = 180

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x = 14

The angles (5x - 5)° and z° are vertical angles.

Vertical angles are congruent.

Therefore we have the equation:

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2 years ago
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