Question

Drew's weekly allowance is $8.00.His friend Jan's weekly allowance is $10.Drew spends $3 a week and Jan spends $4 a week. Write two expressions to show how much money each person has at the end of the week. Use parentheses

Answer 1

If they both have 1 week's allowance before they spend their money, then the math is like so:

Drew -
8w - 3w = y, where x is $/wk earned and y is $/wk spent and y is $ remaining
(8-3)w = y
5w = y
This is 1 week, so:
5(1) = y
5 = y

Jan:
10w - 4w = y, where x is $/wk earned and y is $/wk spent and y is $ remaining
(10-4)w = y
6w = y
This is 1 week, so:
6(1) = y
6 = y

In one week -

Otherwise they are in debt and should learn to hide out until they earn their allowance. Hopefully also learning to live within their means, because the repercussions are usually awful.

Answer 2

Drew = -3w + 8
Jan = -4w + 10

Since we are talkimg about one week, plug in 1 for w

Drew = -3(1) + 8
= $5
Jan = -4(1) + 10
= $6