Conversions
What is 90% written as a decimal?
0.90
Solve.
4n-2n=4
x=2
A bag contains ten black marbles, twenty white marbles, and five grey marbles. You pick one without looking. What is the probability that the marble will be either white OR black? Write as a fraction!
30/35
Expand:
(x+3)(x-4)
x2-x-12
3(6+7)
39
What is 445% written as a decimal?
4.45
Solve.
3=x+3-5x
x=0
You ask a friend to think of a number from four to twelve. What is the probability that his number will be 8? Write as a fraction!
1/9
Expand
(3x-5)(-2x+1)
-6x2+13x-5
2 + 7 x 5
37
What is 0.006 as a percent?
0.6%
Solve.
6=-3(x+2)
x=-4
You roll a SIX sided die. What is the probability that the value of the roll will be one? Write as a percent rounded to one decimal place.
16.7%
Expand
-4x2(4x-3)
-16x3+12x2
(6-4) x 49 / 7
14
What is 1/4 as a percent?
25%
Solve.
-3(1+6r)=14-r
x=-1
A bag contains 5 blue sticks, 4 red sticks, and 3 orange sticks and you ask a friend to pick one without looking. What is the probability that the stick will be blue? Write as a percent rounded to one decimal place.
41.7%
Expand
(2x2+x+3)(x+7)
2x3+15x2+10x+21
(7 x 5) / 5
7
What is 3/8 as a percent?
37.5%
Solve.
75=3(−6n−5)
x=-5
Each of the letters in the word APPLE is on separate cards, face down on the table. If you pick a card at random, what is the probability that its letter will be A or L? Write as a percent.
40%
Expand:
(2x3+2x)(5x2-8)
10x5-6x3-16x
(6 + 25 - 7) / 6
4