Ratios 1
The ratio of boys to girls at Louisiana Middle School is 3 : 5. If there are currently 200 girls enrolled, then how many students at Louisiana Middle School are boys?
120 boys
A - 7/2 or 3.5
B - 2/7 or 0.28 / 0.29
After surveying a parking lot, it is determined that for every 4 red cars there are 3 black cars. If there are 36 red cars, how many black cars are there?
27 black cars
Slide 7
Store B has the better deal because it is $6 per item and Store A is $7 per item.
The ratio of the number of vegetables to ornamentals in a garden is 3 to 4. If there are 49 total plants, how many are vegetables?
21 vegetables
The ratio of boys to girls at Louisiana Middle School is 3 : 5. If there are currently 1,200 students enrolled, then how many students at Louisiana Middle School are boys?
450 boys
Slide 5
4 teaspoons
After surveying a parking lot, it is determined that for every 4 red cars there are 3 black cars. If there are 28 total cars in the parking lot, how many are red?
16 red cars
Mrs. Lynch used 3 cups of sugar for every 4 cups of flour when she was making bread. What is the rate if cups of sugar per cups of flour?
3/4 cups of sugar per cup of flour
At a basketball game the ratio of free throws attempted to free throws made is 5 to 3. If a player made 9 free throws, how many did they attempt?
15 free throws attempted
Casey has a total of 18 pens. Twelve of these pens are blue and the rest are red. What is the ratio of blue pens to red pens?
A) 1:2
B) 2:1
C) 2:3
D) 3:2
B
Slide 6
Answer A - 10
Answer B - 30
Answer C - 5
In a box of Lucky Charms, the ratio of pink marshmallows to green marshmallows is 3 to 5. If there are 56 combined pink and green marshmallows, how many are pink?
A car drives 520 miles in 13 hours. What was the car's speed in miles per hour?
40 miles per hour
120 people were enjoying the weather
A school earns $70 dollars from selling 50 tickets to the school play. How much did they charge per ticket?
$1.40 per ticket
Ms. Porter buys 60 sweatshirts for $750. How much did she pay per shirt?
$12.50
In a classroom, the ratio of students wearing sweatshirts to total students is 2 to 5. If there are 30 students in the class, how many are wearing sweatshirts?
12 students with sweatshirts
If a rabbit runs at a speed of 15 miles per hour, how many miles can it run in 300 minutes?
20 miles
3 out of every 4 crackers in a box were broken. If the box contained 48 crackers, how many of the crackers were NOT broken?
12 crackers were not broken
There are 30 students in Mr. Baker’s music class. One day, 12 students played the recorder. What was the ratio of students who played the recorder to students who did not play the recorder?
A) 12 : 18
B) 18 : 12
C) 12 : 30
D) 30 : 12
A
Mr. Little buys helmets that cost $48 each for the football team. How many helmets can he buy for $864?
18 helmets
In a classroom, the ratio of students wearing sweatshirts to total students is 2 to 5. If there are 40 students in the class, how many are NOT wearing sweatshirts?
24 students without sweatshirts
If a shark can swim 12 miles in 60 hours, how many miles can it swim in 20 hours?
36 miles
There are 3 blue rings, 4 red rings and 8 yellow rings in a pool. What is the ratio of red rings to total rings?
4 : 15