Question

In a jar of blue and red marbles the ratio of blue marbles to red marbles is 5 to 3 there are 320 marbles in the jar how many red marbles are in the jar

Answer 1

120 red marbles

Explanation:

5 to 3 gives a total of 8

let x = # red marbles

3 = x

8 320

8x = 960

x = 120