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4 years ago

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X+Y=4.25 16.90X+4Y=36.35 What are the values of X and Y

1 answer:

jok3333 [9.3K]4 years ago

5 0

Answer:

Y = 2.75
X = 1.5

Step-by-step explanation:

X+Y=4.25

16.90X+4Y=36.35

That means that;

X = 4.25 - Y

Substituting X into the second equation is;

16.90 * (4.25 - Y) + 4Y = 36.35

‭71.825‬ - 16.90Y + 4Y = 36.35

‭71.825‬ - 12.90Y = 36.35

‭71.825‬ - 36.35 = 12.90Y

Y = ‭35.475‬/12.90

Y = 2.75

X = 4.25 - Y

= 4.25 - 2.75

= 1.5

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