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3 years ago

X - 3y = -20 X - 5y = -40 Please help and show how you got to the answer

Mathematics

2 answers:

elena-s [515]3 years ago

8 0

X=3y-20 sooo

(3y-20)-5y=-40
-2y-20=-40
-2y=-20
y=10 sooo

x-3(10)=-20
x-30=-20
x=10

so x and y both equal 10

Anestetic [448]3 years ago

6 0

X=10 & Y=10.

Multiply the second equation by -1, it becomes (-X+5=40)

Add it to the first so that to eliminate X

You will get 2Y = 20 & Y = 10. Plug the value of Y in any of the 2 equation & you will get X = 10

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2 years ago

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2 years ago

If there is 45 ml of milkshake left .She used 1 part strawberry cream to 4 parts milk .How many ml of milk is left?

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Given:

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The remaining amount of milk.

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2 years ago

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Step-by-step explanation:

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From the information given,

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