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    which reduces to 3/4.

idk

step-by-step explanation:

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.