Simple Equations
3x - 5 = 16
x = 7
5x - 10 = 55
x = 9
How do you find the area of rectangle?
Length x width
2 - 4
-2
What do we call the order in which we solve math problems?
Order of Operations
12x = 144
x = 12
-2x + 4 = 8
x = -2
What is the formula for the area of a triangle?
1/2 x length x width
-3 * -2
6
When solving a multi-step equation, what do you do first?
Addition or subtraction
1/3a = 10
a = 30
-17y - 17 = 17
y = -2
How do you find the perimeter of a polygon?
Add up all the sides.
-15 = 20
5
What comes first in problem solving, addition or subtraction?
Whichever comes first from left to right
-2c = -16
c = 8
-35m + 10 = 10 + 14m
m = 0
What do we call the distance around a circle?
-27/-9
3
What is a ratio?
-13n = 130
n = -10
1.2k - 3 = 0.6
k = 3
What is the amount of space a 3-D object occupies or the amount it will hold called?
Volume
10 -4 - 18
-12
What is the sign of the sum of two negatives?
Negative