RATES &
PERCENTS
PERCENTS
What is 20% of 175?
35
An intermediate school has 4th, 5th, and 6th grade students. Which of the following would be a RANDOM sample of the students?
A. Surveying all the janitors.
B. Surveying students who eat school lunch.
C. Surveying students whose name starts with E
D. Surveying every 5th student on the class rosters.
D. Surveying every 5th student on the class rosters.
Find the volume of a rectangular prism with side lengths 6.2in, 4in, and 2in.
Simplify this expression.
4 - |-12 + 3|
-5
What is the value of 1/4(6+2.5)
2.1
Target buys a TV at wholesale for $120. In order to make a profit, Target marked up the TV by 60%. What is the selling price of the TV after mark-up?
$192
Which of the following is a random sample of the students at your school?
A. 10 girls
B. 10 of your friends
C. 10 people in your class
D. 10 names picked from a hat
D. 10 names picked from a hat
Cindy created a circular bracelet out of yarn. The circumference of her bracelet is 12pi units. What is the length of the radius of her circular bracelet?
6 units
Find the simplified product.
-2/3 (3/8)
-1/4
2/5 (12x + 7)
4.8x + 2.8
OR 24/5x + 14/5
Tickets for a concert are sold at a rate of 180 tickets per hour. At this rate, how long will it take to sell all the tickets for a 1440-seat auditorium?
8 hours
Carol rolls a six sided die and flips a coin at the same time. What is the probability that Carol will roll a 4 and flip a heads?
1/12
A soup can is a cylinder with a diameter of 4cm and a height of 12cm. What is the volume of the soup can?
150.72 centimeters cubed
Cable and his dad Scott are playing video games together. On average, Cable scores 10.4 points per game. On average, Scott scores 8.8 points per game. What is the difference in their score averages?
1.6 points
Ms. Greene asked students in the hallway to rewrite the expression 20a - 35 by factoring out the GCF. Which student correctly completed the task?
Wyatt: 20 (a - 35)
Benjamin: 5 (4a - 35)
M'ason: 5 (4a - 7)
Donte: 20 (a - 1)
M'ason
Vinnie swims 1/2 of a lap in 1/4 of a minute. How many laps does Vinnie swim in 1 minute?
2 Laps
Below shows the results of flipping three coins 300 times each. How does the experimental probability of flipping three coins to the same side compare with the theoretical probability?
HHH - 38
HHT - 44
HTH - 42
HTT - 39
THH - 36
THT - 40
TTH - 30
TTT - 31
The experimental probability is less than the theoretical probability because the experimental probability is 0.23 and the theoretical probability is 0.25.
Find the area of the composite figure drawn on the whiteboard labeled "USE THIS". Use 3.14 for pi.
52.26 inches squared
A football team gains 2 yards on the first play, loses 9 yards on the second play, loses 3 yards on the third play, and gains 12 yards on the fourth play. What is the team's total gain or loss?
A gain of 2 yards
Kevin solved the inequality below as shown. What did Kevin do incorrectly?
-4x + 5 > -7
-4x > -12
x > 3
Kevin did not flip the inequality sign after dividing by negative 4
Bluey can sing 8 "oohs" back to back in 12 seconds. How many "oohs" can she sing back to back in 210 seconds?
140
Jake has a six-sided number cube. He rolls it 100 times and records the data below.
Number 1 - 17
Number 2 - 23
Number 3 - 22
Number 4 - 18
Number 5 - 16
Number 6 - 4
Which number has a larger theoretical probability than experimental probability?
A pint of paint covers 50 square feet. How many pints should you buy to paint the ramp shown on the right whiteboard? (Assume you will not paint the bottom of the ramp)
5 Pints
Nick thought of a number, then he added 6 and subtracted -18 to get 28. What number did Nick start with?
4
Describe the graph that would correctly represent the solution of the inequality below.
-x + 4 < -10
Open Circle shaded over 14; shaded right