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Verdich [7]
3 years ago
8

What is the solution of the system? Use the elimination method. 2x+y=20 6x?5y=12

Mathematics
2 answers:
emmasim [6.3K]3 years ago
5 0

Answer:

(22, - 24)

Step-by-step explanation:

Whitepunk [10]3 years ago
3 0

Answer:

(22, - 24)

Step-by-step explanation:

Multiply the first equation by -5 to make the y's so you can add the up to zero.

-5(2x + y = 20)

-10x - 5y = -100  Add the second equation thn solve for x

<u> 6x + 5y = 12  </u>

-4x = -88  

x = 22

Plug 22 in for x in either equation

2x + y = 20

2 (22) + y = 20

44 + y = 20

y = -24

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2 years ago
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Michael's dad is 30 years of age. He is 2 years more than four times Michaels age m. Write and solve a two-step equation to dete
Ksenya-84 [330]

Answer:

The two step equation that we can use to find michael's age is x = (f-2)/4 where f = 30. So Michael is 7 years old.

Step-by-step explanation:

In order to solve this problem we will attribute variables to the ages of Michael and his father. For his father age we will attribute a variable called "f" and for Michael's age we will attribute a variable called "x". The first information that the problem gives us is that Michael's dad is 30 years of age, so we have:

f = 30

Then the problem states that the age of the father is 2 years "more" than four "times" Michaels age. The "more" implies a sum and the "times" implies a product, so we have:

f = 2 + 4*x

We can now find Michael's age, for that we need to isolate the "x" variable. We have:

f - 2 = 4*x

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The two step equation that we can use to find michael's age is x = (f-2)/4 where f = 30. So Michael is 7 years old.

7 0
3 years ago
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Ten students share 8 pieces of poster board equally. What fracyion pf a poece of poster board does each student get?
andrew11 [14]
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lara [203]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hope this helps! :)

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