Answer:
15/20 simplified is 3/4
Step-by-step explanation:
So a 3/4 chance or a 75% chance of not drawing a blue marble.
7.5
3/8 = x/20
3(20) = 8x
8x = 60
x = 60/8
x = 7.5
Equation is t÷5=8
first you multiply 5 on each to cancel it out
t÷5*5=8*5
solve to get
t=40
