Algebra & Equations
Simplify: 3(x+4)-2x
X+12
What is the perimeter of a square with side length 9 cm?
36 cm
Convert 3/4 to a decimal.
0.75
What is the least common multiple (LCM) of 6 and 8?
24
I'm a number. Multiply me by 2 and subtract 4, you get 9. What am I?
7
Solve for x: (2x-1)/3=5
x = 8
A triangle has angles in the ratio 2:3:5. What are the angle measures?
A: What are 36°, 54°, and 90°?
(2/5) ÷ (4/15)
3/2 or 1.5
What is the greatest common divisor (GCD) of 48 and 60?
12
What is the probability of flipping 2 heads with 2 coins?
1/4
The sum of three consecutive even integers is 60. What are the integers?
18, 20, and 22
Find the circumference of a circle with diameter 10 cm.
10pi cm
Evaluate:
(3/4) + (2/3) x (9/10)
27/20 or 1.35
How many prime numbers are there between 20 and 40?
4 (23, 29, 31, 37)
What's the 10th term of the pattern: 2,5, 8, 11, ...?
29
Solve x and y:
2x+y=10
x-y=1
x=3, y=4
A right triangle has legs of 6 and 8 units. What is the length of the hypotenuse?
Express 0.27272727... as a fraction
3/11
What is the remainder when 1234 is divided by 9?
1
If a train travels 60 miles in 1.5 hours, what is its average speed?
40mph
Solve x2 - 5x + 6 = 0
x=2, and x =3
A cylinder has radius 3cm and height 8cm. What is the volume interms of pi?
72pi
The original price increases by 20%, then decreases by 20%. Is the final price the same as the original? What percentage is the final price?
No. Final price is 96% of the original price.
Find integer solutions to 2x+3y=13
x=2, y=3
and other combinations
A bag has 3 red, 2 green, and 5 blue marbles. What is the probability of drawing 2 blue marbles without replacement?
(5/10) x (4/9) = 2/9