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campilk5
14.04.2020 •
Mathematics
Eduardo spent half of his weekly allowance on clothes. To earn more money his parents let him weed the garden for $8. What is his weekly allowance if he ended with $12? Set up an equation and solve it.
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Ответ:
his weekly allowance is $8
The model to solve the problem is
X/2+8=12
Step-by-step explanation:
To get Eduardo's weekly allowance
Say it is x
Now he spent half of x on clothes and earns extra $8 more to end up with $12
Therefore
x/2+8=12
x/2=12-8
x/2=4
x=8
Ответ:
d/r=t
d=171
r=17
171/19=t=9
9 minutes is the answer