Jamaal has 20 models of planes and cars. He has three times as many cars as planes. What is the ratio of his cars to total models? 1:4
3:1
3:4
4:3

3/4
Step-by-step explanation:
If Jamal has 3 times as many cars as planes then we could represent it by the equation x + 3x = 20 where x is the number of planes and 3x is the number of cars.
x+ 3x =20 solve for x
4x = 20
x = 5
Number of planes = 5
Number of cars = 3(5) = 15
Now the ratio of his cars to the total model will be 15/20 which reduces to 3/4.

It would be around 260 feet