Percent
Percent Change
Direct Variation
Graphing
Multi-step Equations
100
What is 50% of 28?
14
100
What is 10% more than 200?
220
100
Find the missing value.
6
100
What is the equation of the graph?
y=x
100
Solve.
2x-4=0
x=2
200
A soccer team won 16 of its 20 games. What percent of its total games did this team win?
80%
200
What is 3% less than 1000?
970
200
What is the constant of proportionality for the given table?
m=4
200
Graph:
y=2x
(All y-values must be twice as much as the corresponding x-value)
200
Solve.
-3x + 8 = -13
x=7
300
What is 18% of 25?
4.5
300
Mr. Bryz bought $36 of food and tipped 22%. How much was his total bill?
$43.92
300
In a direct variation, y = 12 when x = 48. Write the direct variation equation that shows the relationship between x and y.
y=1/4x
300
Graph:
y=-3x
(All y-values must be 3 times the opposite of its x-value)
300
Solve.
5x-4=2x+23
x=9
400
A local high school football field can seat 2500 people. During one game, 2250 seats were filled. What percent of seats were NOT filled?
10%
400
A coupon reduces the price of a video game from $60 to $48. What was the percent decrease in the game's price?
20% decrease
400
If x = 6 when y = 15, find y when x = 2
y=5
400
What is the equation of the graph?
y=1/3x
400
Solve.
2(3x-1)=7x+12
x=-14
500
A school randomly selects 30% of its students to participate in a survey. 45 students were selected for the survey. How many students attend the school?
150 students
500
A company increased its number of employees by 5%. After the increase, the company had 210 employees. How many employees worked at the company before the increase?
200 employees
500
If x = -12 when y = 10, find x when y = -25.
x=30
500
What is the equation for the graph?
y=-2/5x
500
Solve.
5 - 9x = x - 5(2x - 1)
Infinite solutions