2 hours 30 minutes
Step-by-step explanation:
60/90=100/x
60x=9000
x=150 minutes or 2 hour 30 minutes
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
I think the answer to this question is b
this is the quadratic formula
