Question

Chuck's house weighs 100,000 pounds. He removes all of his belongings, which weigh 10,000 pounds. Movers are using Crib Jacks to lift the house, which can only handle up to 15 tons of weight each. How many Crib Jacks will the movers use to lift Chuck's house?

Answer 1

The movers will use 3 Crib Jacks to lift Chuck's house.

100,000 - 10,000 = 90,000 pounds

90,000 pounds = 45 tons

1 Crib Jack = 15 tons

45 ÷ 15 = 3

Answer 2

Hi!

The correct answer is 3 Crib Jacks.

Explanation:

First you have to use the same unit of measure. For pounds and tons, you can use the equivalence:

• 1 ton = 2000 pounds.
• 15 tons = 30.000 pounds. (using Rule of Three)

Now you can solve the equation:

`x = (100.000pounds - 10.000pounds)/(30.000pounds/car)`

`x = (90.000pounds)/(30.000pounds/car)` //pound divide pound is 1

`x = 3 car`

The answer is 3 cars to lift Chuck's House.