If you can multiply each of the numbers in the first ratio by the same factor to get the numbers in the second ratio.
Equivalent ratios
Malakai is attending lessons to learn how to play an instrument. She can attend 4 hours of lessons for a total of $100. Assuming the price per hour is constant, how much would it cost for 9 hours of lessons? Show your work.
At $25 per hour, 9 hours of lessons would cost $225.
Write 6 Gryffindors to 8 Slytherins as a ratio in 3 ways.
6/8, 6 to 8, 6:8
Are these rates equivalent? $3 for 6 Rice Crispy Treats; $9 for 24 Rice Crispy Treats?
No, the rates are not equivalent.
TRUE or FALSE: This is my first full year teaching 6th grade?
Ms. Lindvold - No
Ms. Sebastian -No
The cost for one item or for one unit of measure.
Unit Price
If Mrs. Bradley types 120 words per 3 minutes, what is her rate of typing?
40 words per minute
Write 10 basketballs to 6 soccer balls as a ratio in the 3 ways.
10:6, 10/6, 10 to 6
Are these rates equivalent? 96 words typed in 3 minutes; 160 words typed in 5 minutes.
Yes, the rates are equivalent.
What college did your teachers go to?
Ms Lindvold - Old Dominion University
Ms. Sebastian - Western Washington University
What are 2 ways we write a ratio.
With a colon and with the word "to"
1 quart is equivalent to 64 tablespoons, as shown on the double number line diagram below.

How many quarts are equivalent to 96 tablespoons?
1 1/2 quarts are equivalent to 96 tablespoons.
Elite runners can run 200 meters in 20 seconds. Complete the table to represent a runner running at a constant rate. Show your work and/or explain your reasoning.

Running 200 meters in 20 seconds at a constant rate would mean you run 100 meters in 10 seconds, which is equivalent to running 10 meters per second.
Are these rates equivalent? 288 miles on 12 gallons of fuel; 240 miles on 10 gallons of fuel.
Yes, they are equivalent ratios.
When is Ms. Lindvold's birthday?
June 19th
A comparison between two numbers is called a
ratio
Which is better deal $20 for 5 t-shirts or $24 for 8 t-shirts?
$24 for 8 t-shirts (rate of $3 per shirt)
Tiffany texts 60 words in 4 minutes, so she will text 45 words in how many minutes?
3 minutes
Are these rates equivalent? 16 out of 28 students own pets; 240 out of 560 students own pets
No the ratios are not equivalent.
How many pets does both of your teachers have?
Ms. Lindvold has 9
Ms. Sebastian has 0
A rate per 1.
Unit Rate
Ophelia is making homemade spaghetti sauce by combining 48 ounces of tomato paste with 6 cups of water.
a. How many ounces of tomato paste are needed for every cup of water? Show your work.
b. How many cups of water are needed for every ounce of tomato paste? Show your work.
a. It takes 8 ounces of tomato paste for every cup of water.
b. It takes 1/8 cup of water for every ounce of tomato paste.
Mary Lindey wants to purchase pumpkins. She finds different markets advertising pumpkins for sale. What market has the lowest price per pumpkin? Show your work and/or explain your reasoning.

East Market has the best price per pumpkin.
Are these rates equivalent? 8 pairs of socks for $12; 3 pairs of socks for $6
No the ratios are not equivalent.
How many countries has your teachers visited?
Ms. Lindvold - 20
Ms. Sebastian - 3