Answer:
Step-by-step explanation:
Problem One
Blue = 5
Black =2
Red = 3
First of all there are 10 marbles, 2 of which are black.
That means that 8 others are not black
You can draw any one of the 8.
P(not black) = 8/10 = 4/5
Problem Two
There are 10 marbles in all
3 of them are red.
P(Red) = 3/10
I really don't know try it and if you don't get it bring it to school and then ask the teacher
Kelli ran 4 more miles than the week before, so to find what percent that is of 28, divide.
4 / 28 = 0.142857143, or ~14.29%
Kelli ran 14.2857143% or about 14.29% more miles than last week.