Question

Susan spent $8 of her allowance going to the movies. she gave the dog a bath and earned $5.00. what is her weekly allowance if she ended up with $20.00

Answer 1

Let x be her weekly allowance.
Susan spent $8 of her allowance going to the movies, so x-8=20. Also she gave the dog a bath and earned $5, so our equation now is x-8+5=20.
Now we can solve for x to get the value of her allowance:

`x-8+5=20`

`x-3=20`

`x=20+3`

`x=23`

We can conclude that Susan's weekly allowance is $23

Answer 2

We know that the weekly allowance is the total amount of money that Susan receives weekly before expenses and earns, that is:
Expenses = $8.00
Earns = $5.00
As she ended up with $20.00 we can calculate the weekly allowance as:
Allowance - Expenses + Earns = Ended-up
Allowance - 8 + 5 = 20
Allowance = 20 + 8 - 5 = 23

Allowance is $23.00