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qwelly [4]
3 years ago
8

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

Mathematics
1 answer:
balandron [24]3 years ago
7 0
Here you have 2 linear equations and are to solve this system.  Both equations have already been solved for y, so you can set one of them = to the other one:

-2x+11 = -3x+21.

Then 3x-2x = 21 - 11, or         x = 10 (answer)

Find y by subst. x = 10 into either of the given equations.

Solution is then (10, ? )
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2 years ago
There are 180 students registered in a soccer camp. Of those registered, 35% are seventh graders. How many of the students regis
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Answer:

63

Step-by-step explanation:

35% are of seventh grade.

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Step-by-step explanation:

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Step-by-step explanation:

Given

5y - 4 = 126(corresponding \: angles) \\ 5y = 126 + 4 \\ 5y = 130 \\ y = 130  \div 5 \\  = 26

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Lastly,

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