Solving (equations, inequalities, systems)
What is value of x?
2(x+5)=-2
-6
A teacher recorded the number of minutes her students spent studying for a test:
12, 15, 18, 20, 22, 22, 25, 30
What is the median number of minutes studied?
21
A car travels 180 miles in 3 hours at a constant speed. At this same rate, how many miles will the car travel in 5 hours?
300
When in doubt, _____________ it out!
(What is the missing word?)
EXPAND
What is the formula for the Pythagorean Theorem? And what type of shapes can you use it on?
a2+b2=c2
Right triangles
If -9x+1=-80, what is the value of 2x?
18
A student scored the following grades on five quizzes:
70, 85, 90, 80, 75
What is the average (mean) score?
80
A recipe uses 3 cups of flour to make 12 cookies.
If you want to make 30 cookies, how many cups of flour are needed?
7.5
Simplify the expression:
6x+8y-2x+7+10y
4x+18y+7
What is slope - intercept form?
y=mx+b
What is the solution set for
-2(m+1)<6
m>-4
A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles.
If one marble is chosen at random, what is the probability that it is blue?
3/10
A map uses a scale where 1 inch represents 15 miles.
Two cities are 4.8 inches apart on the map.
How many miles apart are the actual cities?
72
Simplify 3(2x-5)+4x
10x-15
What is the slope of the line that passes through the points (2, 5) and (6, 13)?
2
What is the solution to the system of equations?
x=3
2x-2y=-12
(3, 9)
A standard deck has 52 playing cards. If you draw one card at random, what is the probability of drawing a heart or a king?
4/13
The ratio of teachers to students in a school is 2 : 25.
If there are 200 students, how many teachers are there?
16
Simplify (2x3)(4x5)
8x8
Romeo and Mark are looking for an apartment close to their college campus. Blossom Trees Apartments charges a $500 deposit and rent is $890 per month. Apex Apartments charges a $300 deposit and rent is $1000 per month. If they are wanting to rent for 9 months, which apartment will be the cheapest choice?
Blossom Trees Apartments
What is the solution to the systems of linear equations?
4x+8y=20
-4x+2y=-30
(7, -1)
A teacher surveyed students about their favorite subject. The results are shown below:
Math, Science, Math, English, Math, Science, History, Math, English, Science
If one student is selected at random from this group, what is the probability that the student prefers Math?
4/10 or 2/5
A fruit punch is made using a ratio of orange juice to pineapple juice of 5 : 3.
If a party punch bowl contains 48 cups total, how many cups of orange juice are in the mixture?
30
Simplify the expression:
(5s4qr2)3
125s12q3r6
Two triangles are similar. The sides of the smaller triangle are 3, 4, and 5.
The shortest side of the larger triangle is 9.
What is the perimeter of the larger triangle?
36