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Irina18 [472]
3 years ago
14

Which expression is NOT equivalent to the other three?

Mathematics
1 answer:
Olin [163]3 years ago
6 0

Answer:

9(n - 9)  = 9n - 81

Step-by-step explanation:

Equivalent expressions are expressions which are equal . To determine if expressions are equivalent, simplify to lowest terms through combining like terms.

-9 - 7n + 16n  =  -9 + 9n

9(n - 9)  = 9n - 81

n - 9 + 8n  = -9 + 9n

9n - 9 = -9 + 9n

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Answer:

7 hours

Step-by-step explanation:

47+23=70

1hour = 70 toys

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Then you cross multiply:

1hour*490 toys= 490/70 = 7 hours

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Answer:

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Kool-aide is made from flavored powder and water, with the ratio of powder to water 3:2 based on weight. If 120g of flavored pow
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The given ratio of powder to water is 3:2 based on weight for Kool-aide. It is also given that 120g of flavored powder is needed for a certain amount of Kool-aide.

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