Melanie spent half of her allowance going to the movies. she washed the family car and earned 6 dollars. what is her weekly allowance if she ended with 16 dollars

Her weekly allowance is $20

Step-by-step explanation:

Let her weekly allowance be 'a'

Given that,

She spent half of the allowance (a/2)

So,

Money left with her = (a/2)

She earned $6 by washing the car

She has $16 at the end.

So,

(a/2) + 6 = 16

(a/2) = 16 - 6

(a/2) = 10

a = 10 x 2

a = 20

So, her weekly allowance is $20