Question

Person worked 40 hours at his two jobs last week. He earns $20 dollars an hour for his weekday job and $18 an hour at his weekend job. He earned $770 in all. How many hours did he work at each job

Answer 1

At weekday job, he worked for 25 hours,

At weekend job, he worked for 15 hours.

Explanation:

It is given that the person works for 40 hours a week.

Let the hours spent at weekdays job be "x" hours.

Then hours spent at weekend job is (40 - x) hours.

Money earned at weekday job is
`(20)(x)`.

Money earned at weekend job is
`(18)(40-x)`.

Total money earned is $770. It is also equal to the above total earnings.

`(20)(x) + (18)(40-x) = 770`

`(2)(x) = 50`

`(x) = 25`,

thus, hours spent are 25 and (40 - 25) 15 hours.