Equivalent or Not
Are 2:3 and 6:9 equivalent? Explain how you know
Yes, because when you multiply both sides of 2:3 by 3 you get 6:9.
One batch of lemonade uses 2 cups of water. How much water for 3 batches?
6 cups of water
Who reads faster: someone who reads 10 pages in 5 minutes, or 10 pages in 8 minutes?
10 pages in 5 minutes.
4 concert tickets cost $80. What is the cost per ticket?
$20
A trail mix has 2 cups of nuts for every 3 cups of dried fruit.
Fill in: 4 cups of nuts goes with ___ cups of dried fruit.
6
Find a ratio equivalent to 4:6 that has a second number as 12.
?:12
8:12
A pancake recipe for 1 batch needs 1 egg and 1/2 cup milk. What do you need for 4 batches?
4 eggs and 2 cups of milk
A walker covers 4 blocks in 8 minutes. Another covers 4 blocks in 6 minutes. Who's faster and how do you know?
The second walker because they walk the same amount in less time
3 juice boxes cost $2.25. How much does 1 cost?
$0.75
Purple paint uses 3 parts blue and 2 parts red.
If you use 12 parts blue, how much red do you need?
8 parts red
Two of these are equivalent: 5:10, 2:5, 6:12, 3:6 — which two, and why?
6:12 and 3:6 because...
1 batch of trail mix uses 1/4 cup raisins. How much for 3 batches?
3/4 cup of raisins
0.75 cups of raisins
A snail moves 9 feet in 5 minutes at a constant speed. How far in 1 minute?
1.8 feet
5 apples cost $2.50. How much do 3 apples cost?
$1.50
1 apple is $0.50
In the class, there are 2 boys for every 3 girls.
If the class has 25 students total, how many boy and girls are there?
10 boys and 15 girls
Write two different ratios equivalent to 3:4.
6:8 and 9:12
answers may vary
A soup recipe needs 3/4 cup broth per batch. How much broth for 2 batches?
1.5 cups
6/4 cups
1 2/4 cups
1 1/2 cups
Bike A travels 9 miles in 6 minutes at a constant speed. What is Bike A's speed in miles per minute?
1.5 miles per minute
3 movie tickets cost $31.50. What do 5 tickets cost?
$52.50
each ticket costs $10.50
A bracelet uses 21 blue beads and 7 red beads. If the bag has 56 beads total in this ratio, how many are blue?
42 blue
Two of these ratios are equivalent: 6:8, 9:12, 10:15. Which two, and explain how you know.
6:8 and 9:12 because...
One batch of frosting needs 2 eggs and 1/2 cup butter. You want 5 batches but only have 8 eggs. Can you make it? Explain.
No because 8 eggs can only be used to make at most 4 batches. You do not have enough eggs to make 5 batches of frosting.
Jada bikes 4 miles in 16 minutes. Clare bikes 5 miles in 20 minutes. Who rides at a faster rate?
They ride at the same pace
4 granola bars cost $3.60. At this rate, how many can you buy for $9.00?
10 granola bars
1 granola bar costs $0.90
A trail mix recipe calls for 5 cups of pretzels for every 3 cups of peanuts. Sam's bag has 96 cups of mix total, made in this ratio. How many cups of pretzels are in the bag?
60 cups of pretzles