Ratios
There are 10 white marbles and 3 blue marbles. What is the ratio of white to blue marbles?
10:3
What is a ratio?
A comparison of 2 or more things. For every x unit of one quantity there are y units of another quantity.
What is the equivalent ratio of 12/6?
Answers will vary.
Example:
12/6 divided by 4 equals 3/4
12/6, 24/32, 36/48
If Brooklyn drives 50 miles in 2 hours, what is her rate (speed per hour).
25 miles per hour.
BONUS QUESTION
WHAT IS MS. A'S FAVORITE COLOR(S)?
red and purple
There are 27 white marbles and 13 blue marbles. What is the ratio of white to all marbles?
27:40
What are 3 different ways to write a ratio?
Example:
7:3
7/3
7 to 3
What is the missing term that will make the ratios equivalent? 2 : 4 = ____ : 32
16
If Matthew types 120 words per 3 minutes, what is his rate of typing?
40 words per minute
Ameer gets 10 points in 4 games. How many does he get in 6 games?
15 points
For every 9 token Lisa has, Toby has 13. Write a ratio of the number of tokens Lisa has to the number of tokens Toby has
9:13
What is a unit rate?
It is a rate with a denominator of 1 unit
What is the missing term that will make the ratios equivalent?
10 / 13 = ____ / 52
40
If 10 bags of hot cheetos cost $3.50, then how much does 1 cost?
What is $0.35.
Amina reads 8 pages in 6 minutes, so she will read 4 pages in how many minutes?
3 minutes
There are 2 red blocks, 3 orange blocks, and 4 black blocks. What is the ratio of all to black blocks?
9:4
Show an example of the dimensional analysis method.
Answers will vary.
Example:
15 gal X 4qts/1 gal
60 qts
Complete this table.
3/6, 6/?, 9/18, ?/24, 15/?
12
12
30
Which is better deal $20 for 5 t-shirts or $24 for 8 t-shirts?
What is $24 for 8 t-shirts (rate of $3 per shirt)
Cadence texts 60 words in 4 minutes, so she will text 45 words in how many minutes?
3 minutes.
There are 14 pieces of candy that are red and there are 17 pieces that are green. How many red candies are there out of the total number of candies? Write it as a ratio.
14:31
What is a conversion factor?
a number used to change one set of units to another by multiplying or dividing.
Are the two ratios equivalent? 56:8 and 14 :2
Use a table to show your thinking.
Yes
FREEBIE QUESTION
Start singing your favorite song...
GOOOO!!!
Must sing to earn the points
Students studied 25 hours in total for 2 tests, so in 100 hours how many tests will they study for?
8 tests