Algebra Arena
If 4x-7=13, what is x+2
7
A triangle has angles in a 2:3:4 ratio. What's the measure of the largest angle?
20
I’m a two-digit number. My digits multiply to 8 and add to 6. What am I?
24
Simplify: 3(2x-5)-2(x-4)
4x-7
A circle has a circumference of 31.4 (use π = 3.14). Find its radius.
r=5
The 8th Fibonacci number (starting 0,1,1,2,3,5,8,13...)
13
The some of three consecutive even number is 72. What's the smallest number?
22
Find the area of a trapezoid with bases 10 and 6, and height 4.
32
Find the smallest 3-digit palindrome divisible by 9
171
If 2x+3=y and y=11, find x. Then, what is 3x+y?
23
A right triangle has one leg 9 and hypotenuse 15. Find the other leg.
12
My square ends in 44. What number am I?
38 or 62
A number is doubled, then increased by 7, giving the same result as tripling the number and subtracting 3. What's the number?
10
The diagonals of a rhombus are 10 and 24. Find the side length.
13
My digits add to 10, and reversing me increases my value by 27. What am I?
37