Simplify Expressions
2x - 3x + 5
-x + 5
Are 2/3 and 16/24 proportional?
yes
Write down the formulas for area of a circle, circumference of a circle, and area of a triangle.
Ac = pi*r^2
C = pi*d
A = bh/2
2x - 3 = 17
x = 10
(2/3) x (6/5)
4/5
-2(x - 9) + 4
-2x + 22
x / 10 = 3 / 5
Solve for x.
x = 6
My radius is 9. What is the circumference?
C = 56.52
9x + 4 = 67
x = 7
73/56
-6x - 5(2x +11)
-16x - 55
Bob got paid $75 for 6 hours of work. How much would he get paid for 10 hours of work?`
125
I have a right triangle with side lengths 3, 4, and 5. What is the area?
13 = -4x - 7
x = -5
(9/10) / (6/7)
21/20
-2 + -5 - 4(-x - 6)
4x + 17
11 / x = 121 / 132
x = 12
If I have a radius of 11, what is the area of the semicircle?
A = 189.97
-x + 12x - 6 + 4 = 64
x = 6
-(3/4) - (-6/7)
3/28
5 - 4(2x + x -1)
-12x + 9
Is 36 / 72 proportional to 65 / 130 ?
Yes.
If I have a circle with Circumference of 81.64, what is the area?
-(3/5)x - 11 = -5
x = 9
-(5/3) + 6 / (3/4)
19/3