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Ksenya-84 [330]
3 years ago
14

Solve the system of equations by the substitution method. 5x+4y=38 x=5y−4

Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Answer:

Step-by-step explanation:

Because x=5y-4 you can substitute 5y-4 into the x in the other equation. This makes 5(5y-4) + 4y = 38. When simplified it gives 25y -20 +4y = 38. Move like terms to each side to get 29y = 58 and get y=2. Then you can substitute 2 into the y in either equation to find x. I will do x=5(2)-4 to get x=6. So x=6 and y=2

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Answer:

In 2003, the population was 59000 and the population has been growing by 1,700 people each year.

A.

The equation will be:

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