The ratio of blue marbles to red marbles in a box is 3 to 2. if there are 12 blue marbles in a box then how many red marbles are there?

8 red marbles.

Step-by-step explanation:

The ratio is 3:2, blue to red. If there's 12 blue marbles and the first part of the ratio's 3, then:

12/3=4

Then you take the 4 and multiply it by 2, the second half of the ration to get 8.

And so, the answer's 8. If you divide 12:8 by 4 each you get your original ratio of 3:2, so that's your way to check.

5050

hope this !

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%