Question

Ahmed is taking orders for lunch.A sliceof pizza cost $2.1 and a chichen sandwich cost $3.1. He collects $22.8 for the group of 8 people

Let x=number of pizza orders let
y=number of chicken orders

Answer 1

x + y = 8
2.1x + 3.1y= 22.8

-2.1x - 2.1y = -16.8
2.1x +3.1y = 22.8

y = 6 chicken orders

x + 6 = 8

x = 2 pizza orders