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tatiyna
2 years ago
8

1) Write a system of equations to describe the situation below, solve using any method, and

Mathematics
1 answer:
Aloiza [94]2 years ago
7 0
This situation can be represented by

y = 33x + 223

y = 32x + 239

I still like substitution, so let’s plug in 33x + 223 into the second equation

33x + 223 = 32x + 239

Move the terms into appropriate sides

33x - 32x = 239 - 223

Combine like terms

x = 16

Then plug in x for any equation

y = 32(16) + 239

y = 751

Erin will have to swim 16 laps for a total of 751 meters
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