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 equation and then determine the cost of each slice of pizza and the cost of each burger.

Answer 1

The answer is

3P+2B=15.50

P+4B=20

Where P=pizza slice and B=burger

B=4.45

P=2.20

Explanation:

The system proposal is

3P+2B=15.50

P+4B=20

Solving for P in the second equation, we have

P=20-4B and replace in first equation we have:

3(20-4B)+2B=15.50

Solving for B:

B=(60-15.5)/10=4.45

Replace B in first equation

P=20-4B=20-4(4.45)=2.20