2 years ago

Car #1 travels 288 miles in 4 hours. Car #2 travels 276 miles in 3

Mathematics

1 answer:

8_murik_8 [283]2 years ago

3 0

Step-by-step explanation:

288÷60(60 minutes in an hour) = 4.8

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2x+5y=20. , -2x+20y=-90. one solution. infinity many ir no solution. use elimination to find your answer

scoundrel [369]

2x+5y=20
X=10-2.5y

-2(10-2.5y)+20y=-90
-20+5y+20y=-90
25y=-70
Y=2.8

2(2.8)+5y=20

5.6+5y=20
5y=14.4
Y=2.88

CHECK:
2(2.8)+5(2.88)=20

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3 years ago

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Answer:

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Sam is correct.

Step-by-step explanation:

Renia is wrong because shes adding exponents instead of multiplying them.

Sam is correct because she multiplied the exponents correctly.

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gregori [183]

Answer:

Step-by-step explanation:

because it makes sense

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Ede4ka [16]

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