Answer:
A bag contains:
8 blue balls.
7 green balls.
5 red balls.
The probability that the ball is red would be:
P = Red balls/Total balls = 5/(5+7+8) = 5/20 = 1/4 =0.25
Hope this helps!
:)
Answer:
9b+10s
Step-by-step explanation:
you are trying to find an expression for total cost after an unknown amount of hours. you need to multiply the number of hours (defined as b and s in this example) by the cost per hour given ($9/hr for the bike and $10/hr for the scooter).
this would result in the following expression: total cost=9b+10s
Answer:20.7
Step-by-step explanation:
Answer:
0.07
Step-by-step explanation:
First, add up all the numbers. This will be the denominator.
4+2+3=9
There are 9 pieces of candy.
Since you are randomly choosing two times you will have to multiply two fractions.
There are 
M&M's, and 
Butterfingers (You simplify)
Now you multiply these.
×=
Now make this into a decimal. To do this divide 2 and 27. which is approximately 0.07.
2t<-4 divide both sides by 2
t<-2
...
7t>49 divide both sides by 7
t>7
So t=(-oo,-2) and t=(7,+oo)
t=(-oo,-2)U(7,+oo)
