Order these objects from heaviest to lightest: school bus (9 tons), horse (1,100 pounds), elephant (5,500 kilograms), grand piano (15,840 ounces).

Understand the Problem

The question is asking to compare the weights of different objects and order them from heaviest to lightest. It provides specific measurements for each object, which need to be converted to a common unit for accurate comparison.

Answer

School bus, elephant, horse, grand piano.

Steps to Solve

Convert all weights to a common unit

We will convert each object's weight into pounds for easy comparison, using the provided conversion factors.

For the school bus: [ 9 \text{ tons} = 9 \times 2000 \text{ pounds} = 18,000 \text{ pounds} ]

For the horse: [ \text{Horse weight} = 1,100 \text{ pounds} ]

For the elephant: [ 5,500 \text{ kilograms} = 5,500 \times 2.2 \text{ pounds} \approx 12,100 \text{ pounds} ]

For the grand piano: [ 15,840 \text{ ounces} = \frac{15,840}{16} \text{ pounds} = 990 \text{ pounds} ]

List the weights in pounds

Now we have the weights of all the objects in pounds:

School bus: 18,000 pounds
Horse: 1,100 pounds
Elephant: 12,100 pounds
Grand piano: 990 pounds

Compare the weights and order them

Now we will arrange the weights from heaviest to lightest:

School bus: 18,000 pounds
Elephant: 12,100 pounds
Horse: 1,100 pounds
Grand piano: 990 pounds

The correct order from heaviest to lightest is:

School bus (18,000 pounds)
Elephant (12,100 pounds)
Horse (1,100 pounds)
Grand piano (990 pounds)

More Information

This problem involves unit conversion and comparison. It helps reinforce skills in handling different measurement units and understanding weight distribution.

Tips

Forgetting to convert all weights to the same unit before comparing.
Miscalculating the conversions due to incorrect multiplication or division factors.

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