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lyudmila [28]
4 years ago
5

What is his weekly allowance if he ended with $15

Mathematics
2 answers:
zavuch27 [327]4 years ago
5 0
The answer would be x = ,because
x - x/2 + 9 = 15
x/2 + 9 = 15
x/2 = 6
x = 12

Please award Brainiest!!! ☺
ivann1987 [24]4 years ago
5 0
Work backwards
First, Subtract 9 dollars (That he just earned form washing car) from the 15 he ended up with,so that you get what his leftover money from the movie was.
15-9=6, 6 * 2 = 12
So benny started with 12 dollars as a weekly allowance
Double check by going in order
12/2 = 6 (He spent half original amount on movies), then add 9 for his chore
 6+9=15, 15 is what his end amount was so the answer is $12 was benny's start or weekly allowance


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