Homework Help: Algebra 1

Posted by janet on Wednesday, November 14, 2012 at 1:54pm.

Christopher orders a 3 topping pizza for $15.25 and a 5 topping pizza for $17.75. Write and solve a system of linear equations to find the price of a plain pizza( no toppings) and the cost of each topping.

Algebra 1 - Reiny, Wednesday, November 14, 2012 at 2:03pm
cost of plain pizza --- x
cost per topping -----y

x + 3y = 15.25
x + 5y = 17.75
subtract them
2y = 2

continue .....

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