Doug earned $40 from weekend job. he spent 1/4 of it on CD and 1/5 on movie ticket. how much money did he have at the start of the weekend?
The problem doesn't give us any clues about how much money had before he earned $40 from his weekend job.
To find out how much money Doug had at the start of the weekend, we need to subtract the amount he spent from the money he earned.
Doug earned $40 from his weekend job.
He spent 1/4 of it on a CD, which is 1/4 * $40 = $10.
He also spent 1/5 of it on a movie ticket, which is 1/5 * $40 = $8.
So, the total amount he spent is $10 + $8 = $18.
To find out how much money Doug had at the start of the weekend, we subtract the total amount he spent ($18) from the money he earned ($40).
$40 - $18 = $22.
Therefore, Doug had $22 at the start of the weekend.