Question

Mike and Bill sell cars for Jangle's Auto. Over the past year they sold 640 cars. Assuming Mike wells 3 times as many as Bill, how many cars did Mike

Answer 1

so we have 2 parts to define to solve this problem:
b makes x cars
m makes 3 times the cars b makes, or 3x
so 3x+x=640
640/4 = 160
since we're solving for m, the answer is 160*3 or 480