Answer: Question 3:To order these objects from heaviest to lightest, we need to convert all the weights to the same unit of measurement. In this case, let's convert everything to pounds.
First, let's convert the weight of the school bus, which is 9 tons. Since 1 ton is equal to 2,000 pounds, we can multiply 9 tons by 2,000 to get 18,000 pounds.
Next, let's convert the weight of the horse, which is 1,100 pounds. Since this weight is already in pounds, we don't need to convert it.
Now, let's convert the weight of the elephant, which is 5,500 kilograms. Since 1 kilogram is approximately 2.2 pounds, we can multiply 5,500 by 2.2 to get approximately 12,100 pounds.
Lastly, let's convert the weight of the grand piano, which is 15,840 ounces. Since 1 pound is equal to 16 ounces, we can divide 15,840 by 16 to get 990 pounds.
Now that we have all the weights in pounds, we can order them from heaviest to lightest:
1. School bus: 18,000 pounds
2. Elephant: 12,100 pounds
3. Horse: 1,100 pounds
4. Grand piano: 990 pounds
So, the objects from heaviest to lightest are the school bus, the elephant, the horse, and the grand piano.
Question 4:To determine which jobs paid better than others, we need to compare the amount of money earned per hour for each job.
Two weeks ago, Andre mowed a neighbor's lawn for 1 hour and earned $10. Therefore, his earning rate for that job was $10 per hour.
Last week, Andre mowed his uncle's lawn for 2 hours and earned $30. To calculate his earning rate for that job, we divide the total earnings ($30) by the number of hours worked (2). This gives us an earning rate of $15 per hour.
This week, Andre mowed the lawn of a community center for 2 hours and earned $30. Again, to calculate his earning rate for this job, we divide the total earnings ($30) by the number of hours worked (2). This also gives us an earning rate of $15 per hour.
Comparing the earning rates for each job, we can see that both the job of mowing his uncle's lawn and the job of mowing the community center's lawn paid better than the job of mowing the neighbor's lawn.
In terms of earning rates, mowing his uncle's lawn and mowing the community center's lawn both paid $15 per hour, while mowing the neighbor's lawn paid $10 per hour.
Therefore, the jobs of mowing his uncle's lawn and mowing the community center's lawn paid better than the job of mowing the neighbor's lawn.
Explanation: