A truck that can carry no more than 7200 lb is being used to transport refrigerators and upright pianos. Each refrigerator weighs 300 lb and each piano weighs 425 lb. Write and graph an inequality to show how many refrigerators and how many pianos the truck could carry. Will 11 refrigerators and 10 pianos overload the truck? Explain.

Question

Mathematics

Nicholas Chang

22 January, 21:19

A truck that can carry no more than 7200 lb is being used to transport refrigerators and upright pianos. Each refrigerator weighs 300 lb and each piano weighs 425 lb. Write and graph an inequality to show how many refrigerators and how many pianos the truck could carry. Will 11 refrigerators and 10 pianos overload the truck? Explain.

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Answers (1)

Know the Answer?

Irene Lam · Answer 1

Inequality: 7200=300x+425y

x=number of refridgerators on the truck

y=number of pianos on the truck.

answer: Yes, 11 fridges and 10 pianos would overload the truck, because if you insert 11 in for x and 10 in for y, you get an answer of 7,550 lbs, exceeding the amount of 7200lbs.