Writing ratios
Unit rate
Better buy
Equivalence
100
There are 12 girls and 16 boys. Write the ratio of boys to girls.
16 to 12 or 4 to 3
100
25 words in 5 minutes. How many words in 1 minute?
5 words
100
10 pencils for $10 or 6 pencils for $3
Which is a better deal?
6 for $3
100
Do 16:28 and 4:6 form an equivalent ratio?
no
200
What is the ratio for blue squares to total squares?
5 blue : 12 total
5 blue to 12 total
200
If your heart beats 300 times in 5 minutes, what is the unit rate?
60 beats per minute
200
$2.25 for 5 pens or 6 pens for $3.00
Which is a better deal?
$2.25 for 5
200
If you had 5 yellow balloons for every 7 blue balloons, how many blue balloons would you need for 40 yellow balloons?
56
300
Alex is working at a grocery store. Alex needs to stock the shelves with 30 cases of soda and 36 cases of water. What is the ratio of cases of water to cases of soda?
36 cases of water to 30 cases of soda
36 cases of water : 30 cases of soda
300
If there are 1332 calories in a bag of chips and there are 9 servings, how many calories per serving?
148 calories per serving
300
A 6 oz juice costs $0.96 and an 8 oz bottle costs $1.12. Which is a better deal?
the 8 oz
300
Solve for x: 16:40 = 4:x
x = 10
400
There are 40 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
12 white rabbits
(3 whites: 7 grays : 10 total)
( _ whites:__ grays : 40total)
400
If you drive 450 miles in 6 hours, how fast were you driving?
75 miles per hour
400
A 12 oz box of crackers costs $2.69 and a 16 oz box costs $3.79. Which is a better deal?
12 oz box
400
When solving 6/22 = 15/a, should a be bigger or smaller than 22?
What number should a equal?
bigger
a = 55
500
There are 75 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
45 black mice
(2pink:3black: 5total)
(_pink: _black: 75total)
500
If you spend $8.22 on 6 pounds of apples, what is the unit rate per pound?
$1.37 per pound
500
2.4 pounds for $21.84 or 3.2 pounds for $28.48
Which is a better deal?
3.2 for $28.48
500
When solving 75/12 = p/8, should p be bigger or smaller than 75?
What number should p equal?
smaller
p = 50