Question

A dozen mangos and a pizza cost $2.70.

Half a dozen mangos and 2 pizzas cost $3.75.
What is the cost of a pizza?

Answer the question and show steps.

Answer 1

Answer is $1.60 cost of pizza

Step by step

Our equations

12m + p = $2.70
6m + 2p = $3.75

To solve using elimination method, we need to multiply one equation so the variables are +\- so when added they equal zero, or are eliminated

A) 12m + p = $2.70
B) 6m + 2p = $3.75
multiply equation B by -2
B) = -12m -4p = -7.50

Rewrite your equations

12m + p = $2.70
-12m -4p = -7.50
______________
-3p = -4.80

Divide both sides by -3 to solve for p

-3/-3p = -4.80 /-3

p = $1.60 cost of pizza