1/10 = .1, and 3/33 = .0909090... it is equivalent if you estimate.
Each pink marble is 90 cents. One blue marble is a third the price of a pink marble, and since yang bought 3 times more blue marbles than pink ones, the total prices are equal. Then you account for the difference between the costs. I'm not good at explaining, hope this helped
Answer:

Step-by-step explanation:
so let's start with what we know:

now to get it into non mixxed numbers:
2*3 = 6
6+1
_____

2*3=6
6+2=8
______

now to cross mutiply them:
7*3
do u have any answer choices???