Equations
Solve for x:
x + 15 = 85
70
(-5)3
-125
Find the mean:
84, 80, 82
82
Find 25% of 200.
50
Solve for x:
x - 15 = -15
0
3 feet represents 50 miles... How many miles will 27 feet represent?
450
(-3)4
81
Find the median:
90, 97, 85, 72
87.5
Find 50% of 250.
125
Solve for x:
x - 23 = -65
-42
A 25 foot flagpole has a 20 foot shadow. Find the height of a person with a 5 foot shadow.
6.25
Solve:
-5 + -20 + 15 =
-10
A spinner has 12 equal sections. There are 3 green, 5 red, one yellow, and 3 blue.
What is the probability of landing on green? Give your answer as a percent.
25%
Find the sale price on a winter coat regularly priced at $250 and on sale with a 20% discount.
$200
Solve for x:
-3x - 26 = 160
-62
A model of a 220 foot tall building is 25 inches tall and 10 inches wide. How wide is the actual building?
88 feet
Solve:
-100 + 40 + 15 + -30 =
-75
You have a bag of candy. There 7 grape candies, 12 orange, 8 cherry, 3 licorice, 15 watermelon.
What is the probability of randomly selecting a grape candy? Give your answer as a percentage
15.5% or 15.6%
A factory takes a sample from the candy bars they make and find that 7% of them are misshapen. If the factory makes 8400 candy bars a day, how many can you predict will be misshapen?
588
Solve for x:
5x - 14 = 3x + 20
17
A model car is made to a scale of 2 inches on the model is equal to 25 feet on the actual car. If the model is 15 in long, how long, in inches, is the actual car?
187.5 in
Solve:
-120 + 50 + -40 + 10 =
-100
You take a sample of 75 people from your town and ask them how they feel about a new law. From the survey, 12 people had no opinion, 33 opposed the law, and 30 favored it. If there are 2250 citizens in the town, how many could you predict would favor the law?
900
What is 35% of 27% of 900?
80.05