SOLUTION: Three four-pound bags and nine one-pound bags for $27 One four-pound bag and five one-pound bags for $13 Write a system of equations that could be used to represent both Julia

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Question 1177348: Three four-pound bags and nine one-pound bags for $27
One four-pound bag and five one-pound bags for $13
Write a system of equations that could be used to represent both Julia’s purchase and Christine’s purchase and then determine the cost of a four-pound bag and a one-pound bag.

Found 2 solutions by josgarithmetic, Solver92311:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
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Three four-pound bags and nine one-pound bags for $27
One four-pound bag and five one-pound bags for $13
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3 of 4-pound bags and 9 of 1-pound bags: $27;
1 of 4-pound bags and 5 of 1-pound bags: $13


if y is price for a 4-pound bag
and
x is price for a 1-pound bag
then
system%289x%2B3y=27%2C5x%2B4y=13%29

Notice you can reduce the first equation and have system
system%283x%2By=9%2C5x%2B4y=13%29


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.
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Answer by Solver92311(821) About Me  (Show Source):
You can put this solution on YOUR website!






Solve the 2X2 system for , the cost of a 4-lb bag, and , the cost of a 1-lb bag.


John

My calculator said it, I believe it, that settles it

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