Two-Step Equations & Inequalities
2x + 6 = 12
x= 3
What is the diameter of a circle with a radius of 10 inches?
20 inches
Complementary angles add to equal...
90 degrees
3 + -10
-7
There are 3 boys for every 4 girls in class. If there are 9 boys, how many girls are in class?
12
3x - 9 = 15
x = 8
A circle has a diameter of 9. What is the radius?
4.5
Supplementary angles add to equal...
180 degrees
-9 + -9 =
-18
I have 5 red skittles for every 7 green skittles. If I have 35 green skittles, how many red skittles do I have?
25
-5x + 10 = 25
x = -3
How do we find circumference of a circle?
diameter x 3.14
I have two vertical angles. If one angle is 30 degrees, what is the measure of the other angle?
30 degrees
-3 x 3 =
-9
Maxine drove 120 miles in 4 hours. What was her speed in miles per hour?
30
-2x - 8 = 20
x = -14
How do we find area of a circle?
radius x radius x 3.14
Two supplementary angles, one angle is a 100 degrees. What is the measure of the other angle?
80 degrees
-10 x -10 =
Marvellouz can send 40 text messages in 2.5 minutes. What is his unit rate?
16 messages per minute
-4x + 8 < -16
x > 6
What are the first 10 digits of pi?
3.1415926535
Complementary angles, one angle is x , and the other angle is x + 20. What is the value of x?
x = 35
9 - (-9) =
18
Last week Bill earned $210 for working five hours. How much will he earn for working 7 hours?
$294