Question

Andre sometimes mows on the weekend to make extra money. Two weeks ago, he mowed a neighbor's lawn for 1/2 hour and earned $10. Last week, he mowed his uncles lawn for 3/2 hours and earned $30. This week, he mowed the lawn of a community center for 2 hours and earned $30. Which job paid better than others?

Answer 1

Andre got better paid when he mowed for neighbor's and uncle's lawn which is $20/hr than Community center's lawn which is $15/hr.

Explanation:

Given:

Andre mowed a neighbor's lawn for 1/2 hour and earned $10.

For 1/2 hour = $10

So for 1 hour = Money earned in 1 hour.

By using Unitary method we get;

Money earned in 1 hour =
`(10)/((1)/(2)) = (10*2)/(1) = \$20`

Hence Andre hourly rate to mowed neighbor's lawn is $20.

Also Given:

Andre mowed a Uncle's lawn for 3/2 hour and earned $30.

For 3/2 hour = $30

So for 1 hour = Money earned in 1 hour.

By using Unitary method we get;

Money earned in 1 hour =
`(30)/((3)/(2)) = (30*2)/(3) = \$20`

Hence Andre hourly rate to mowed Uncle's lawn is $20.

Also Given:

Andre mowed Community center's lawn for 2 hour and earned $30.

For 2 hour = $30

So for 1 hour = Money earned in 1 hour.

By using Unitary method we get;

Money earned in 1 hour =
`(30)/(2)=\$15`

Hence Andre hourly rate to mowed Community Center's lawn is $15.

Now Since we can see that when he mowed neighbor and uncle's lawn he was paid at rate of $20 and when he mowed Community Center's lawn he got paid at rate of $15.

Hence Andre got better paid when he mowed for neighbor's and uncle's lawn which is $20/hr than Community center's lawn which is $15/hr.