Percents
Write each decimal as a percent.
0.627
62.7%
The list shows the ages of men on a tennis team.
23, 40, 42, 34, 31, 36, 49, 58, 25, 36, 28
Find the mean and median of the data. Round your answers to the nearest tenth of a year.
36.5; 36
Classify each pair of angles as complementary or supplementary. Then find the missing angle measure.
#5
Page 136
complementary 73 degrees
Find the perimeter of each polygon.
#1 Page 156
29 cm
Charlie rolls two number cubes. The probability the sum is less than 4 is 2/21. What is the probability of having a sum of 4 or greater?
19/21
Use a fraction to estimate the percent of each number.
19% of 61
12
Determine whether each sample may be biased. Explain.
A school principal randomly chooses 75 students for a survey on the cafeteria food.
The sample is not biased. It is a random sample.
For Exercises 9-12, use the figure to complete each statement.
Lines a and d are ?
#8 Page 136
perpendicular
Find the area of each circle to the nearest tenth. Use 3.14
#3 Page 156
153.9 mm squared
David made 16 out of 28 free throws at basketball practice. What is the experimental probability of making his next free throw?
4/7
Solve.
0.5m + 1.5 = 2.5
m=2
Determine whether each sample may be biased. Explain.
A reporter surveys 120 people leaving a baseball game to find out their favorite baseball team.
The sample is biased. It is likely that many of these people have the same favorite team since they went to the same game.
For Exercises 9-12, use the figure to complete each statement.
Lines b and a are ?
#9 Page 136
parallel
Find the area of each figure.
#5 Page 156
132 in squared
Chad has blue pants and tan pants. He also has a white shirt, gray shirt,blue shirt and a yellow shirt. What are all the possible outcomes for an outfit? How many outcomes are in the sample space?
BW, BG, BB, BY, TW, TG, TB, TY; 8
Find each percent of change. Round answers to the nearest tenth of a percent, if necessary.
150 to 220
Increase 47.7%
The list shows the ages of men on a tennis team.
23, 40, 42, 34, 31, 36, 49, 58, 25, 36, 28
Find the mode of the data. Round your answer to the nearest tenth of a year.
36
Find the measure of the third angle in each triangle, given two angle measures. Then classify the triangle.
36°, 19°
125 degrees , obtuse
A shipping box is shaped like a rectangular prism. It is 12 in. long, 7 in. wide and 4 in. high. Find its volume.
336 inches cubed
Lucy and her cousins are choosing names to buy gifts for each other. She has 6 boy cousins and 7 girl cousins. If Lucy is randomly picking one of her cousin's names what is the probability she picks a girl?
7/13, 0.54, 54%
John borrowed $25,000 to fix his porch. The bank charged him a simple interest rate of 7.75%. How much will John owe if he pays the bank back in 5 years?
$34,687.50
The list shows the ages of men on a tennis team.
23, 40, 42, 34, 31, 36, 49, 58, 25, 36, 28
Find the range of the data. Round your answer to the nearest tenth of a year.
35
Determine the missing measures in each set of congruent polygons.
#14 Page 137
7 cm
A can of play dough is cylindrical. The can is 7 cm wide and 7 cm tall. If the label on the can is 3 cm tall and goes all around the can, how much paper is needed for the label to the nearest tenth? Use 3.14
65.9 cm squared
Gino’s pizza offers 5 toppings, pepperoni, sausage, mushrooms, green peppers, and extra cheese, for their pizzas. How many different 3 topping pizzas can be made?
10