Percents
What number is 80% of 65?
Use and show a proportion to solve for your answer.
52
The radius of a circle is 9 in. What is the diameter?
18 in
What is the probability of flipping tails on a two sides coin? Give your answer as a percent, fraction, and decimal.
50%, 1/2, 0.5
Find the measure of angle 1.
Name the angle relationship.
95 degrees
Alternate Exterior Angle
A 4-pound bag of birdseed costs $10.00. What is the unit price?
$2.50 per pound
32 is what percent of 200?
16%
The radius of a circle is 18 meters. What is the diameter?
36 meters
You randomly choose a marble from a jar. The jar contains 4 red marbles, 10 blue marbles, 7 green marbles, and 6 yellow marbles.
Find the probability of not choosing a blue marble.
17/27
Find the measure of angle 6.
Name the angle relationship.
85 degrees
Adjacent Supplementary
15
You earned a 90% on a science test. You answered 18 questions correctly. How many questions were on the test?
20 questions
The radius of a circle is 14 cm, what is the circumference?
About 88 cm
Your bike lock has 4 digits numbered 0 to 9. Find the total number of possible combinations for the lock.
10,000 combinations
Find the measure of angle 5.
Name the angle relationship.
95 degrees
Vertical angles
2 + 3g = 11
3
Find the principal:
Interest earned: $45
Principal: ?
Interest rate: 3%
Time: 2 years
Principal: $750
The top of a glass coffee table is a circle. The circumference is 15.7 feet.
a. What is the radius of the table?
b. What is the area of the table?
a. about 2.5 ft
b. about 19.625 ft squared
There are 64 cookies in a jar. The probability of randomly choosing an oatmeal cookie from the jar is 37.5%. How many of the cookies are not oatmeal cookies?
40 cookies
360 degrees
2 triangles
Kira picked 2 2/3 pounds of berries. She divided them evenly among 6 containers. How many pounds of berries did Kira put in each container?
4/9
You deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be $221?
3 years
An office manager needs to decide between two tables for the conference room. One is rectangular, 5 feet wide by 10 feet long. The other is a circle with an 8-foot diameter.
a. Find the perimeter or circumference of each table.
b. Find the area of each table.
c. Which table can seat more people? Explain.
a. 30 ft; about 25.12 ft
b. 50 ft squared ; about 50.24 ft squared
c. The rectangular table has a greater perimeter, so more people will fit around it.
You flip a coin and you roll a number cube. What is the probability that you flip heads and roll a number less than 3? Simplify your fraction.
1/6
A ladder leaning against a wall forms a triangle and exterior angles with the wall and the ground. What are the measures of the exterior angles?
Next to wall: 145 degrees
Next to ground: 125 degrees
What is the area of this figure?
48.5 square meters