Area and Measurement
If the diameter of a circle is 12cm, what is the radius?
Radius is 6cm
True or false: An expression has an equal sign and an equation does not.
False
Expression: 4n + 2
Equation 4n + 2 = 26
True or False: The mean is when you order the numbers from least to greatest and find the middle number.
False: The mean is when you add all the numbers and divide by the amount of numbers you have.
True or False: Theoretical probability is the chance of something happening in a perfect world or the chance that something should happen.
True
1 pound of strawberries cost 1.64. Marissa buys 5 pounds of strawberries. How much do 5 pounds of strawberries cost?
8.20
What is the circumference of a circle if it has a radius of 3?
The circumference is 18.84
Solve the expression if the value of n is 2.
4/n + 6
If there are NO outliers, what is the best "average" to use? Mean, Median or Mode?
Mean is the best average to choose if there is no outlier.
What is the probability of a coin landing on tails? Write is as a fraction, ratio, decimal and percentage.
1/2 = 1:2 = 0.5 = 50%
What is 2/8 as a simplified fraction, decimal and percent?
1/4, 0.25 and 25%
What is the area of a parallelogram with a base of 4 and a height of 6?
Area is 24
Solve for n: 4n - 7 = 29
n = 9
What is the median of these numbers?
3, 5, 6, 8, 11
Median is 6
Mrs. Landry has a bag with 7 marbles in it: 3 are yellow, 2 are green, 1 is red and 1 is blue. What is the probability of you pulling a yellow marble from the bag?
3/7 or 0.43 or 43%
Mr. Rouse buys subway for 16$ and tips 10%. How much did he tip?
1.60$
What is the area of a triangle with a base of 6 and a height of 12?
Area is 36
Sam is a babysitter that makes 20$ an hour and an additional 5$ as a tip. Create or write an expression that represents how much money Sam makes. Use h to represent the number of hours.
Ex: 2h - 2
20h + 5
The Oil Barons played 6 games. Here are the amount of shots they took for each game: 10, 14, 12, 9, 16. What is the mean of their shots for the 6 games?
Mean is 12.2
You went to Tim Hortons and bought a variety pack of donuts: 2 Honey Crullers, 3 Chocolate Coconut, 1 Apple Fritter and 1 Boston Cream. What is the probability you will get a Honey Cruller? Express it as a fraction, ratio, decimal and percentage.
2/7 = 2:7 = 0.29 = 29%
Marcus wants to buy a pair of Yeezys that are 25% off. The original price of the Yeezys is 220$. What is the cost of the Yeezys on sale?
The sale price is 165$.
The area is 12.56
The base of a rectangle is worth "n" and the height is worth "n+2". The area of this rectangle is 80 cm2. What is the value of n?
Hint (n) x (n+2) = 80 cm2
n = 8
The marks for a math test were: 98, 89, 82, 82, 80, 56. If the Outlier (56) was removed from the data set, what happens to the mean?
The mean increases.
There are two carnival games you want to play.
Game One: A spinner with four even slices and four colours: green, yellow, blue and red. To win, you must land on red.
Game Two: Roll an 8 sided die and land on an odd number to win.
Which game should you play to have the highest probability of winning?
Play game two (the dice game). The dice game has a 4/8 or 50% chance of winning and the spinner game has a 1/4 or 25% chance of winning. The dice game has better odds.
Mary buys 5 shirts for 14.25. The cashier charged her 80.75$. How much did the cashier overcharge her? (How much extra did the cashier make Mary pay?)
The cashier made Mary pay an additional 9.50