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Irina18 [472]
2 years ago
14

Write an equivalent expression 8(y-7z+1)

Mathematics
1 answer:
Musya8 [376]2 years ago
5 0

Answer:

8y−56z+8

Step-by-step explanation:

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At the city museum, child admission is $6.10 and adult admission is $9.30 . On Sunday, four times as many adult tickets as child
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Answer:

21 child tickets

Step-by-step explanation:

For this problem, you'd use a system of equations.

First, define your variables.

x = # of child tickets sold

y = # of adult tickets sold

There were 4 times as many adult tickets (y) as child tickets (x) sold, so:

4 x = y

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93 (4 x - y = 0)

372 x - 93 y = 0

The total revenue was $909.30, adult tickets were $9.30 each, child tickets were $6.10 each, so:

6.10 x + 9.30 y = 909.30

10 (6.10 x + 9.30 y = 909.30)

61 x + 93 y = 9093

372 x - 93 y = 0

433 x = 9093

433 x / 433 = 9093 / 433

x = 21

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2 years ago
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Answer:

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Step-by-step explanation:

I think

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