Percentage Problems
What is 25% of 60?
Part = (0.25)(60)
Part = 15
What is P(drawing a jack) from a deck of cards?
4/52 or 1/13
1 or 100%
Where did Mr. Denning grow up?
Carmel, Indiana
40% of what is 35
35 = (.40)(x)
x = 87.5
Is playing rock, paper, scissors at the same time as your partner independent or dependent events?
Independent
How many outcomes are possible: Two flavors of ice cream: vanilla and chocolate. Two toppings possible: sprinkles and toffee.
Create a probability tree to decide!
Four combinations
What is my dog's name?
Trick question!!!!!! I don't have a dog!
A pair of jeans costs $320. It is on sale for 60% off. How much will you pay for the jeans? How much will you save?
Part = (0.60)(320)
Part = $192 off
Pay = $128
Is the probability of drawing a blue marble out of a bag, keeping it out of the bag, and drawing another blue marble an example of independent or dependent events.
Dependent
Create the probability table for the number line game. What is the probability of rolling a sum of 12?
1/36
Bob's age is triple plus six of his nephew's age. Their ages add to equal 38. How old are Bob and his nephew?
Bob = 30
Nephew = 8
Do I write left or right handed?
Do I shoot left or right handed?
Do kick left or right footed?
Left
Right
Right
A city planner made his scale capitol building on 2.5% of its actual height. The scale model was 4 feet tall. How tall is the actual building?
4 = (0.025)(whole)
Whole = 160 feet tall
You are going to look at puppies. Half of the puppies or brown and the other half are gold. There are three types of puppies: retrievers, doodles, and boxers. What is the probability that you randomly pick a gold retriever?
1/2 x 1/3 = 1/6
Create the tree for this situation with three decisions to make:
-3 pairs of pants: jeans, shorts, running
-2 shirts: blue and red
-2 hats: baseball and sun
How many total outcomes and what is the probability of randomly picking a red shirt in your combination?
12 outcomes
6/12 or 1/2 will be red shirt
There are three types of books in a bookstore. There are twice as many mystery books as romance. There are 4 more sci-fi books than romance. In total, there are 62 books. How many of each type of book is there?
Romance = 15 books
Sci-Fi = 19 books
Mystery = 30 books
What is my favorite day and part of that day of each week?
Saturday Mornings!
A replica bobble head of Tyrese Haliburton is 8.5% of his actual height. The bobblehead is 6.545 inches tall. How many inches tall is Tyrese Haliburton?
6.545 = (0.085)(whole)
whole = 77 inches
What is the probability of rolling a 5 four times in a row on a die?
1/6 x 1/6 x 1/6 x 1/6 = 1/1296
A carnival game spins two spinners.
-Spinner 1 has the numbers -3, -2, and 0
-Spinner 2 has the numbers 1, 2, and 3
What is the probability of getting a negative number if you add the two spins together? Create a probability table to find the answer.
3/9 or 1/3
There are four sports offered at CFI 84: Volleyball, Futsol, Baseball, and Track. There are 5 times as many volleyball players as Track. The number of Futsol players is 3 more than twice the number of Track runners. The difference between the number of baseball players and track runners is 12. The total number of athletes at CFI 84 is 105.
Volleyball: 50
Futsol: 23
Baseball: 22
Track: 10
Where will Mr. Denning be traveling in May/June? Two countries outside of the US!
Japan and South Korea!