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Question 926036: On their way back from a picnic, Susan, Franklin and Allison stop in to pick up some groceries. Susan buys 2 gallons of milk and a dozen eggs for $5.72. Franklin buys 2 gallons of milk, 2 dozen eggs, and a loaf of bread for exactly $8.00. Allison buys a dozen eggs and a loaf of bread and gives the storekeeper $3.00. How Much change does she receive?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! x = $ price of milk (1 gallon)
y = $ price of eggs (dozen)
z = $ price of bread (loaf)
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2x + y = 5.72
2x + 2y + z = 8.00
x + z = 3.00
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put the system of linear equations into standard form
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2x + y = 5.72
2x + 2y + z = 8
x + z = 3
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = $ price of milk (1 gallon) = 2.15
y = $ price of eggs (dozen) = 1.43
z = $ price of bread (loaf) = 0.85
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Solve systems of linear equations up to 6-equations 6-variables:
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