Stefan sells Jin a bicycle for $127 and a helmet for $16
.
The total cost for Jin is 130
%
of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin?

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Ответ:

tangia

18.10.2021

Mathematics

4j - 16 = 4 • (j - 4)
(8 • (j - 4)) - 8 • (j - 4) = 0

8 • j-4 • ( 1 * 1 +( (-1) * (-1) ))
16 • (j - 4) = 0
16= 0
J-4=0
J= 4

I hope that’s right!

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Stefan sells Jin a bicycle for $127 and a helmet for $16 . The total cost for Jin is 130 % of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin?