Milagros Duran & Keslie Chapa December 18, A

A pair of boots and a pair of tennis shoes cost $ The difference in their cost is $ Determine the cost of each. Problem Situation

Define Variables X= cost of a pair of boots Y= cost of a pair of tennis shoes

X –Y = System of Equations X + Y =

Elimination Add the equations to eliminate the variable Y. Solution Method

X + Y = Add the equations X –Y = X = X = Step 1 of Solution

X + Y = Rewrite knowing that X equals Y = Subtract from both sides. Y = Step 2 of Solution

(X, Y) (120.25, 75.87) Solution to the System of Equations

= Check of Solution

The cost of a pair of boots is $ The cost of a pair of tennis shoes is $ Solution in the Problem Situation