# Yahoo Answers 04-13

- Author:
- Michael Brown

the simon family's car emits 0.75 pounds of CO2 per mile. their minivan emits 1.25 pounds of CO2 per mile. The simons want to limit their emissions to at most 4000 pounds per month.
A.write an inequality to model this condition.?
b. draw a graph of all the pairs (car miles, minivan miles) that satisfy this condition
how i can draw the graph? and find the inequality?:(

Well you have two variables.
Call the car miles x and the van miles y
0.75x+1.25y<4000