Abag contains 12 red marbles, 5 yellow marble and 15 green marbles. How many RED marbles must be added to the bag so that the probability of drawing a RED marble is 60%
22
40

13
29
19
Previous
Nex
11:04

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

do you have an easier question cause this shh is hard like theheck

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.