Algebraic expressions
Simplify:
3x+4x−2x+5-3-6
5x - 4
What is the sum of angles in a triangle?
180°
A die is rolled. What is the probability of rolling a 6?
1 / 6
Write the ratio of 6 to 12 in simplest form.
1:2
Find x:
3(2x−4)+5=23
x=5
Solve:
2x+7=15
x=4
Find the area of a triangle with base 10 cm and height 6 cm
30 cm2
A bag has 5 red, 3 blue, and 2 green marbles. What is P(not blue)?
7 / 10
The ratio of boys to girls is 3:5. If there are 24 students total, how many are boys?
9 boys
Simplify:
23+4(6−2)2
72
3(x+2) = 2x+10
x=4
Find the surface area of a cube with side length 5.
150
A bag has 2 red and 3 blue marbles. Two marbles are picked (without replacement). What is the probability both are red?
1/ 10
A map scale is 1 inch = 20 miles. Two cities are 3.5 inches apart on the map. How far apart are they in real life?
70 miles
Find x:
(2x+6) / 3 = 8
x=9
Simplify:
(2(x−3)+4(x+1)) (5(x - 1) )
30x2−40x+10
A cylinder has a radius of 3 cm and a height of 8 cm.
What is the volume of the cylinder? (Use pi≈3.14)
226.08 cm3
A coin is flipped 3 times. What is the probability of getting all heads?
1 / 8
Two machines can produce 240 parts in 6 hours working tog
360
5(x−2)=3(x+4)
x=11
3(2x−1)−4x=x+1
x=1
Find the area of a rectangle if x=4. with length x+3 and width x
28
A bag contains x red marbles and 4 blue marbles.
If the probability of picking a red marble is 1/3, find x.
x=2
A car travels at a constant speed. It goes 150 miles in x hours.
If its speed is 50 miles per hour, find x.
3 hours
3x2−12=0
x=2