For every 100 cars that enter the intersection from A, 30 cars head toward B, 40 cars head toward C abd 30 cars head toward D. If 60 cars enter the intersection from A, how many cars head toward B?

Do it as a proportion

60/100=X/30

20?

To answer the question, we need to calculate the ratio of cars heading toward B to the total number of cars entering the intersection from A.

We know that for every 100 cars entering from A, 30 head toward B. This means the ratio of cars heading toward B to the total number of cars entering from A is 30/100.

To find out how many cars head toward B when 60 cars enter from A, we can set up a proportion:

(30/100) = (x/60)

To solve for x, the number of cars heading toward B, we can cross-multiply and then divide:

30 * 60 = 100 * x

1800 = 100 * x

x = 1800/100 = 18

So, when 60 cars enter the intersection from A, there would be 18 cars heading toward B.