Eduardo spent half his weekly alloweance playing arcade games. To earn more money his parents him clean the windows in the house for $5. What is his weekly allowance if he ended with $13?

Respuesta :

O = Original amount of money

O / 2 + 5 = 13

Original amount of money / 2 (because he spent half) + 5 (for cleaning windows) = 13 (the amount he has left.

Rearrange the formula to find O

O = 2(13 - 5)

O = 2(8)

O = $16