Nolimitss
contestada

Two friends went to a restaurant and ordered one plain pizza and two sodas . Their bill totaled $15.95. Later that day, five friends went to the sane restaurant. They ordered three plain pizzas and each person had one soda. Their bill totaled $45.90. Write and solve a system of equations to determine the price of one plain pizza.

Respuesta :

ak78
Assume the price of one pizza is x and the price of one soda is y.
1) x+2y=15.95
2) 3x+5y=45.90
multiply equation (1) by -3 and add the result to equation (2).
y=$1.95 (one soda)
Replace y in the first equation: x=$12.05
Cetacea

The cost of 1 pizza=12.05.

The cost of 1 soda=1.95.

Solution:

Let the cost of 1 pizza=x

the cost of 1 soda=y

According to the question:

Two friends went to a restaurant and ordered one plain pizza and two sodas . Their bill totaled $15.95. It means x+2y=15.95.

Later that day, five friends went to the sane restaurant. They ordered three plain pizzas and each person had one soda. Their bill totaled $45.90.

It means 3x+5y=45.90.

Solving the equations we get, x=12.05 and y=1.95.

Learn more: https://brainly.com/question/11876335

Otras preguntas