Question

Abhasra spent half of her weekly allowance at the movies. To earn more money her parents let her clean the windows in the house for $7. What is her weekly allowance if she ended with $12?

Answer 1

Answer:

so she'll have a weekly allowance of 10$

Step-by-step explanation:

12-7=5 then 5×2 =10

Answer 2

Answer:

Her weekly allowance is $10

Step-by-step explanation:

Let's call x her weekly allowance

At the end she has $12. She obtained this for the addition of the money she earned cleaning windows ($7) and the half of her weekly allowance (the other half she spend it at the movies). Mathematically:

x/2 + 7 = 12

Solving for x:

x/2 = 12 - 7

x = 2*5

x = $10