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MrZone9
Group Title
A box contains 35 coins in quarters and nickels worth $3.15 How many of each coin are there
(system of liner eqations problem)
 3 years ago
 3 years ago
MrZone9 Group Title
A box contains 35 coins in quarters and nickels worth $3.15 How many of each coin are there (system of liner eqations problem)
 3 years ago
 3 years ago

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abtrehearn Group TitleBest ResponseYou've already chosen the best response.1
Q + N = 35 25Q + 5N = 315.
 3 years ago

abtrehearn Group TitleBest ResponseYou've already chosen the best response.1
Simplyf the second equation, solve the first for one of its unknowns and substitute into the simplified second equation, and you're well on your way to the solution.
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
careful with the decimals! \[25q+5(35q)=315\] \[
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
\[20x+175=315\] \[20x=140\] \[x=7\]
 3 years ago
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