Conversions/Ratios/
Proportions
Proportions
Convert 2/3 into a decimal, percent, part/whole, and part/part ratio
.66, 66%, 2:3, 2:1
Find the mean, median, mode and range for the following numbers
12, 27, 14, 18, 22, 21, 13, 14, 18, 22
Mean - 18.1
Median - 18
Mode - 14, 18, 22
Range - 15
What is the probability that you will roll a 4 or a 5 on a dice?
1/3
What is the probability that you roll a 3 and then a 4 on the dice? Express as a percent.
2.8%
At the all you can eat buffet, there were 4 kinds of meat, 5 different kinds of starch (rice/potato), and 4 kinds of vegetables and 8 different desserts. If you take one of each kind. How many different ways could you combine the foods?
640
Convert .15 to a fraction, percent, part/whole, and part/part ratio (all answers must be completely reduced)
3/20, 15%, 3:20, 3:17
On Monday, the high temperature was 71 degrees. On Friday, it will be 45. What is the percent change in temperature from Monday to Friday?
37
Last week, it rained on Monday, Tuesday and Saturday. What was the experimental probability that it would rain last week?
3/7
In a bag of Halloween candy there are 5 Snickers, 8 Skittles, 4 Smarties, and 10 Starbursts. If you pull out two pieces of candy, what is the probability that one is a Skittles and one is a Starburst? Express as a percent.
11.4%
12 animals were competing in a 4-H event at a local fair. Award were given to first, second and third places. How many different ways could these prizes be awarded?
1320
In the zoo 3 chimpanzees are sick and 2 hippos. What is the ratio of sick chimpanzees to all the sick animals?
3:5
At 5:30 only 12 trick or treaters had come by my door. By 8:00 that number had increased by 183%. How many people had come by?
34
In a bag of skittles, there are 3 red, 4 orange, 2 yellow, 6 green and 5 purple. What is the probability that you will pull out a primary color (red, yellow, blue)
3/10
In a bag of Halloween candy there are 5 Snickers, 8 Skittles, 4 Smarties, and 10 Starbursts. If you pull out two pieces of candy, what is the probability that both are Snickers?
3%
This Saturday I need to clean my room, do the dishes, do the laundry, clean the bathroom, tidy the living room and clean the floors. How many different ways could I order my day?
720
A recipe calls for 2 cups of sugar and 1 cup of milk. If you want to triple the recipe, how many liters of milk should you add to the 6 cups of sugar? What information would you need to be able to solve this problem?
how many cups are in a liter
After all the trick or treaters had gone, I counted and found that I had 21 pieces of candy left in my bowl. This was decrease of roughly 78%. About how many pieces of candy did I have in my bowl at the beginning of the evening?
about 95 or 96
David went to the batting cage to practice his swing. He recorded the following data.
H, H, M, M, M, M, H, H, H, H, M, H, H, M, H, H, H, H,
What is the experimental probability that David will hit the next ball?
2/3
On a bookshelf there are 5 romance novels, 7 adventure books, 5 historical fiction, 3 biographies, and 8 nonfiction books. You pick a book at random and then put it back. Then you pick another book. What is the probability that the first book would be a romance and the second nonfiction? Express as a percent.
5.1%
Tia has 9 pairs of dress shoes in her closet. She needs to choose 2 to take with her to a conference. How many different combinations of 2 could she create? (Hint: Use your staircase)
36
It took Lucas 2 hours and 48 minutes to travel from Sterling to Colorado Springs (198 miles). If he keeps at the same speed, approximately how long would it take him to travel 576 miles to Albuquerque, New Mexico? Round to the nearest hour.
8 hours (Specifically 8 hours and 9 minutes)
40% of the children at the Halloween party dressed up as monsters. If 28 children did NOT dress as monsters, how many did dress as monsters? Round to the nearest whole number
19
Joan really likes reptiles. She goes to a pet store. There are 15 dogs, 12 cats, 14 birds, 5 hamsters, 20 fish, and a turtle. What is the probability that she will leave with the turtle?
100%
At the local fishing pond, there are 27 trout, 35 catfish, and 40 bluegill. What is the probability that you will get a bluegill too small to keep and then a trout and a catfish both large enough to take home? Assume that you release the bluegill back into the pond. Express your answer as a percent.
3.6%
There are 5 types of candy in the bowl. You may choose 3 of them. How many different ways could you combine the candies?
10