Vocabulary
What is a ratio?
Two amounts of two different things that go together.
If 4 pounds of apples cost $14, what are the prices for 1, 2, and 3 pounds of apples?
$3.50, $7, $10.50
If one batch of cookies calls for 5 cups of flour and 3 cups of oats, which of these are not equivalent ratios?
15:12, 10:6, 20:12
15:12
DAILY DOUBLE!💥
What is the cost of a movie ticket if 3 tickets costs $36?
$12
What is a table?
It organizes information into rows and columns.
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If 4 movie tickets cost $29, what's the unit price for one ticket?
$7.25
1 batch= 5:2, what's the ratio for 4 batches?
20:8
7 ears of corn is $4.20. How much is each ear?
$.60
What does "per" mean?
Per means "for each".
4, 8, 12, 16
6, 12, 18, 24
DAILY DOUBLE!💥
If Ayan makes one batch of sparkling o.j. using 4 liters of o.j. and 5 liters of fizzy water, how many batches would 36L o.j and 45L water make?
9 batches
5 tomatoes cost $3.10. What is the cost of each tomato?
$.62
DAILY DOUBLE!💥
What's a double number line good for?
Finding equivalent ratios.
The ratio of adults to students in the cafeteria is 2:24. How many adults are needed if there are 72 students?
6
Peyton bought 6 tacos (she was hungry) and paid $8. How many tacos can she buy with $20?
15 tacos.
3 ice cream cones cost $8.25. At this rate, how much do 2 ice cream cones cost?
$5.50
What are equivalent ratios?
If you can multiply or divide both numbers in the ratio by the same number, those new numbers are equivalent ratios to the first pair.
If a train traveled 164 meters in 4 seconds at a constant speed, find it's speed in meters per second.
41 meters
Solve the table problem on the next screen.
Half of 8 is 4.
Divide both sides by 4.
1/4
3 bananas cost $.99. How much do 5 bananas cost?
$1.65