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White raven [17]
3 years ago
6

7x - 5y = 22 7x - 9y = 6 What's y?

Mathematics
2 answers:
zysi [14]3 years ago
8 0
So you need to first cancel out x  so multiply -1 to one of the equations i'm gong to pick the second one so now it is 7x-5y=22 and -7x+9y=-6 then add so 4y=16 so y=4
Vesna [10]3 years ago
3 0
You can do this by taking away the second equation from the first to get rid of the x terms so:

7x - 7x = 0
-5y - -9y = - 5y + 9y = 4y
22-6 = 16

So you are left with the equation:
4y = 16

Divide both sides by 4 to find y
y = 4
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andreev551 [17]
I don't speak Spanish but I think that this is what you meant:
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4 0
3 years ago
Tom Harding is a proofreader. He is paid $0.23 for every page he proofs. What is Tom's total pay for a week in which he proofrea
natka813 [3]
Alrighty, what I was always taught was to start by writing out what you know from the question.

What I know:
-Tom is paid $0.23 for every page of proofs.
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In order to figure out how much money Tom has made, we need to multiply 0.23 by 1,992. Multiplying allows us to see the total amount of money made by proofreading x amount of pages - for every page he proofreads, he makes $0.23.
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Therefore, Tom made $458.16.

Hope this helps!

3 0
3 years ago
How to know when to use which probability distribution?
worty [1.4K]
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3 0
3 years ago
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Lady_Fox [76]

Answer:

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Step-by-step explanation:

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x=34.28

5 0
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3 years ago
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