Question

Jason paid $15.50 for 3 slices of pizza and 2 burgers. Susan paid $20 for 1 slice of pizza and 4 burgers. Write a system of equations and then determine the cost of each Slice of pizza and the cost of each burger.(Do Not give the equation as your answer).

:Each slice of pizza cost$?
:Each burger cost$?

Answer 1

Each slice of pizza cost $2.2

Each burger cost $4.45

Explanation:

Let

x -----> the cost of one slice of pizza

y ----> the cost of one burger

we know that

Jason

`3x+2y=15.50` -----> equation A

Susan

`x+4y=20` -----> equation B

Solve the system of equations by graphing

Remember that

The intersection point both graphs is the solution sof the system of equations

The solution is the point (2.2,4.45)

see the attached figure

therefore

Each slice of pizza cost $2.2

Each burger cost $4.45