ratios and proprtions: if you go to chicago and use 2/5 of a gallon tank of gas, how many gallons did you use? this was an 80-mile trip, how many tanks would you use to travel 500 miles?

Question

ratios and proprtions: if you go to chicago and use 2/5 of a gallon tank of gas, how many gallons did you use?     this was an 80-mile trip, how many tanks would you use to travel 500 miles?

cwtan · Answer

x = Full tank
(2/5)x=80 mile
x=200mile
y= How many tank?
xy=500
200y=500
y=2.5 tanks

anonymous · Answer

amount of gallons of gas used for chicago trip=2/5*1 gallon= 0.4
this was for 80 miles..For 1 miles 0.4/80
so for 500 miles =0.4/80*500