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4 years ago

11

Solve this system of equations using substitution. Put your answer in ordered pair form, (x,y).

1 answer:

Gelneren [198K]4 years ago

8 0

2x + 5y = 2
-3x - y =-3

-3x - y = -3
y = 3x - 3

substitute y = 3x - 3 into the first equation.

2x + 5y = 2
2x + 5(3x - 3) = 2
2x + 15x - 15 = 2
17x - 15 = 2

solve for x in 17x - 15 = 2

17x - 15 = 2
17x = 2 + 15
17x = 17
x = 1

substitute x = 1 into y = 3x - 3

y = 3x - 3
y = 3(1) - 3
y = 3 - 3
y = 0

(1, 0) << the answer

hope this helped, God bless!

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blondinia [14]

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Margaret’s bottle of shampoo is 7/8 full. She uses 1/3 of the shampoo in the bottle to wash the dog. Estimate what fraction of s

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Solution:

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To make the denominators same do cross multiplication.

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$=\frac{21-8}{24}$

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4 years ago

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3 years ago

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3 years ago

Klio2033 [76]

Answer:

Not sure if this is exactly the same,but hopefully it answers your questions.

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