Random Math
Percents
Algebra
Rational Numbers
Random
100
-25 - (-18) =
-7
100
Find 15% of 80
12
100
What do we call it when we do the opposite of distributing?
Example: 6x + 15 = 3(2x + 5)
factor
100
Turn into a decimal
7/8
7 divided by 8
0.875
100
What team knocked out the defending champion Boston Celtics in this year's NBA playoffs?
New York Knicks
200
Estimate the surface area using 3.14 for pi.
Area of circle = pi times radius squared
=3.14(25) = 78.5
The outside of the cylinder is a large rectangle. The dimensions of the rectangle are the height of the cylinder (10) and the circumference of the circle (C=pi times diameter). Since the radius is 5, the diameter is 10.
Area of rectangle = 10 x pi x 10 = 314
Add 314 + 78.5 + 78.5 (there are 2 circles)
Surface Area = 471 cubic units
200
Calculate 25% off of $160.
25% of 160 is 40
160-40=
$120
200
Simplify:
2(3x - 1) - 4(2x + 7)=
6x - 2 - 8x - 28 =
-2x - 30
200
What is 1.4 as a reduced mixed number
1 2/5
200
Who was the#1 pick in this year's NFL draft?
Cam Ward
300
Calculate the difference between the Median and the Mean (or average) of the numbers below
13 2 2 6 6 3 14 7 7 4 2
Mean =
66/11=6
Median= put the 11 numbers in order, you will find 6 is in the middle.
6-6 = 0
300
45% of what number is 144?
% times whole = part
.45w = 144
divide by .45 on both sides
w = 144
300
(2x^3)^2*5x
4x^6*2x
8x^7
300
-3 1/4 *2.5+4.8
-3.325
300
What is the name of the duck in my room?
Pineapple
400
Find the probability of selecting a blue, not replacing, and selecting another blue.
2/10*1/9
1/5*1/9
1/45
400
Bob got a raise from $20 to $24. What was the percent increase of the raise?
(amount of change) divided by (the orignal amount), then multiplied by 100
4/20 = 0.2 = 20% increase
400
Solve for y:
8 + 2y = -22
y = -15
400
Trashetball Question! 90 seconds
Find the solution as a mixed number.
3 3/5x=16 1/5
Divide both sides by 18/5 (keep change change, so multiply both sides by 5/18)
Turn 16 1/5 into 81/5
After simplifying, the solution is
4 1/2
400
This November, the 5th and final season of what popular Netflix series will be released?
Stranger Things
500
Solve for x.
Several equations will work.
Here's one-
4x + 14 + 86 = 180
4x + 100 = 180
4x = 80
x =20
500
Ok so not a percent problem, sorry. Write the equation of this line.
b (y-intercept) = 5
m (slope) =
-2/1
y = mx + b
y = -2x + 5
500
Solve for x:
2(3x - 5) + 4x + 7 = 27
x = 3
500
Solve:
3/2x-3/4=3/8
Add 3/4 on both sides (get a common denominator of 8)
3/2x=9/8
Divide both sides by 3/2 (keep change change)
So we end up multiplying by 2/3
x=3/4
500
Who plays Glinda in the movie version of Wicked?
Ariana Grande