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tiwaribianca475
17.10.2019 •
Mathematics
Can someone me with this word problem.
a notebook costs $3 and binders cost $7. if joe bought 4 notebooks and some binders for $47, how many binders did he buy?
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Ответ:
3n+7b=47
12+7b=47
-12 -12
7b= 35
b= 5
Ответ:
47-12 = 35
35 divided by 7 is 5
so I believe he bought 5 binders
if you add it up it like 5 x 7= 35+12= 47
Ответ:
answer:
it should be 50
step-by-step explanation: