Question

please help this is a homework question (i cant send a picture i don't know how to i'm sorry) it states: Ricardo is considering the following jobs as summer employment.yard work 5 hours per day :$34.50babysitting 7 hours per day: $31.50lifeguarding 3 hours per day:$23.10camp counselor 8 hours per day:$60.80If he wants to earn $1,000 this summer working the least amount of hours, which job should he choose?A.babysittingB.yard workC.lifeguardingD.camp counselor

Answer 1

To determine which of the 4 jobs should Ricardo choose, we need to solve which one gives the highest rate per hour.

Let's calculate the rate per hour in each job. Let's start with yardwork.

$34.50\div5hrs=6.9$

The rate per hour for yardwork is $6.9 per hr. To be able to get $1000, Ricardo has to work at least 145 hrs.

For babysitting:

$31.50\div7hr=4.5$

The rate for babysitting is $4.5 per hr. To be able to get at least $1000, Ricardo has to work at least 222.22 ≈223 hrs.

For lifeguarding:

$23.10\div3hrs=7.7$

The rate for lifeguarding is $7.7 per hr. To be able to get at least $1000, Ricardo has to work at least 130 hrs.

Lastly, as a camp counselor:

$60.80\div8hrs=7.6$

The rate as a camp counselor is $7.6 per hr. To be able to get at least $1000, Ricardo has to work at least 131.58 hrs ≈ 132 hrs.

Out of the 4 options, working as a lifeguard has the highest rate that is $7.7 per hour and only requires Ricardo to work at least 130 hrs to earn at least $1,000. (Option C)