Simplifying/Solving
Systems
Quadratics/factors
Ratios and Proportions
Probability
200
Multiply:
(x+1)(2x-3)
2x2-x-3
200
x=1
3x-2y=-7
(1,5)
200
Factor
x^2+2x-63
(x+9)(x-7)
200
x/4=6/8
x=3
200
What is the mode?
1 child
400
-8(b+1)=32
x=-5
400
Solve:
y=2x-14
x-3y=17
(5, -4)
400
List all the NON-prime factors of 80
1, 4, 80, 40, 20, 16, 10, 8
400
If 32% of Hersey students prefer chocolate ice cream to vanilla ice cream, and there are 1200 students in the school, how many students prefer vanilla ice cream?
816 students prefer vanilla
(384 students prefer chocolate)
400
What's the range?
Biggest test score - smallest test score = 4
600
(3x-2)2
9x2-12x+4
600
What's the solution?
No solution
600
Fully Factor:
4x2-8x
4x(x-2)
600
The ratio of monthly income to the savings in a family is 5:4 If the savings are $9000, find the income and the expenses.
Income: $11,250
Expenses: $2,250
600
In a survey, 72 students were surveyed to see their preference of ice cream. The results are shown below. What is the probability of the randomly chosen person who likes football and vanilla?
~44.44%
800
Find an expression to represent the perimeter of a triangle with sides that measure the following:
12x+3 inches, 31x-4 inches, and 5.1x-3 inches
48.1x - 4 inches
800
Solve by substitution
x=-6y+16
5x-2y=-16
(-2,3)
800
SOLVE
-16=-x^2
x=4
x=-4
800
(3x-1)/(7x+1)=2/5
x=7
800
Johnny wants to earn an 80% in Human Geo. He currently has 4 out of 5 tests in the grade book. He scored a 78%, 89%, 90%, and 68% on his first four tests. What will he need to score on his 5th test to earn an average of 80%?
75% on 5th test
1000
x^2-8x=0
x=0
x=8
1000
Solve by Elimination
4x-5y=-1
7x-4y=3
(1,1)
1000
SOLVE
2x^2-9x+7=0
x=7/2, x=1
1000
Mr. Stack went shopping for gifts for his birds and dog. The items he purchased had original prices of $3.95, $12.25, $8.95, $42.25, and $11.35. If he had a coupon for 10% off and paid 7.25% tax, what was the total bill?
$76.01
1000
What is the mean? (500 pts)
What is the mode? (250 pts)
What is the range? (250 pts)
Mean ~ 4.64
Mode = 3
Range = 10