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Vesnalui [34]
3 years ago
12

Need help with this question please!!

Mathematics
1 answer:
lara31 [8.8K]3 years ago
7 0

Answer:

C. 1/2

There are many ways to do this but I'll use substitution.

Step-by-step explanation:

Bottom equation yields x = 4 - 8y

plug that into the top equation results in:

4(4 - 8y) - y = 3y + 7

Simplify this to find y:

-36y = -9

y = 1/4

Plug that into the bottom equation we get:

x = 4 - 2 = 2

Thus, xy = 2(1/4) = 1/2 (C)  

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4 years ago
The value of the 7 in 27,459 is how many times the value of the 7 in 40,735?
alukav5142 [94]

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10

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Year 1: 328,000 (sales) - 117,000 (expense) = 211,000 (profit)

Year 2: 565,000 (sales) - x (expense) = y (profit)

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