SOLUTION: Grace and hannah had just $5 to spend for an after-school snack. They could have 2 hamburgers and 1 carton of milk with no change back or 1 hamburger and 2 cartons of milk with 40

Question 928311: Grace and hannah had just $5 to spend for an after-school snack. They could have 2 hamburgers and 1 carton of milk with no change back or 1 hamburger and 2 cartons of milk with 40 cents change back. How much does a carton of milk cost?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = dollar cost burger
y = dollar cost milk
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2x + y = 5
x + 2y = 5 - 0.40
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put the system of linear equations into standard form
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2x + y = 5
x + 2y = 4.6
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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 = dollar cost burger = 1.80
y = dollar cost milk = 1.40
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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