Equivalent Ratios
If the ratio of cats to dogs is 3:4, how many cats are there if there are 12 dogs?
9 cats
Use a tape diagram to show the ratio of 4:1. If the total number of parts is 25, how many are in each part?
5
Write an equation for the following scenario: The book fair fundraises $250 per day for the school.
t = d * 250
t = 250d
A birdwatcher sees 12 robins for every 5 sparrows. If she sees 60 robins, how many sparrows does she see?
25 sparrows
If you have a ratio of 3:5 and you want to create a new ratio that is equivalent but with a total of 40 parts, what are the new values?
15 and 25 OR 15:25
A recipe requires 3 cups of flour for every 2 cups of sugar. If you want to make a larger batch using 12 cups of flour, how much sugar will you need?
8 cups of sugar
Fill in the missing value: 3:9 = ?:27. What is the missing value?
9
Write an equation for the following scenario: Peter is training for a bike race and can cycle 20 miles in 1 hour.
m = h * 20
m = 20h
A painter mixes blue and red paint in a ratio of 2:3. If she uses 10 cups of blue paint, how many cups of red does she need?
15 cups of red paint
In a school, there are 150 students. 90 of them are girls, and the rest are boys. What is the ratio of girls to boys?
90:60
A class has a ratio of 5 boys to 7 girls. If there are 56 girls in the class, how many boys are there?
40 boys
The ratio of pencils to erasers in a box is 4:3. If there are 28 pencils, how many erasers are there?
21 erasers
Write an equation for the following scenario: Tamara is wanting to buy a new TV and saves $38.50 every month.
t = m * 38.50
t = 38.50m
A school has a ratio of 10 teachers for every 120 students. How many students are there for each teacher?
12 students
In a basket, the ratio of apples to oranges is 2:3. If there are 40 apples in the basket, how many oranges are there?
60 oranges
A car can travel 180 miles on 6 gallons of gas. If you want to drive 540 miles, how many gallons of gas will you need?
18 gallons
In a survey, the ratio of people who prefer chocolate ice cream to those who prefer vanilla is 5:3. If a total of 64 people participated in the survey, how many people preferred vanilla ice cream?
24 people preferred vanilla ice cream
Write an equation for the following scenario: A recipe for oatmeal raisin cookies requires 2 eggs for every 1 dozen cookies.
c = 2 * e
c = 2e
Donald's Donuts makes both chocolate and plain glazed donuts. Each Saturday, they make 13 plain glazed donuts for every 7 chocolate glazed donuts. What is the ratio of chocolate glazed to plain glazed?
7:13
At a movie theater, the ratio of adult tickets to child tickets is 5:7. If 60 adult tickets were sold, how many child tickets were sold?
84 child tickets
A fruit stand sells apples and oranges in the ratio of 3:2. If the stand has a total of 50 pieces of fruit, how many apples and how many oranges are there?
30 apples and 20 oranges
In a school, the ratio of students in grades 6 to 7 is 4:5. If there are a total of 90 students in both grades, how many students are in each grade?
6th grade = 40 students
7th grade = 50 students
Write an equation for the following scenario: A smoothie recipe requires 3 cups of blueberries for every smoothie.
s = 3 * c
s = 3c
At a local daycare, there is a ratio of 2 caretakers for every 7 children. If there are 189 total children, then how many people are at the daycare facility?
243 people
A bakery makes cupcakes in the ratio of chocolate to vanilla frosting 4:3. If there are 70 cupcakes, how many have chocolate frosting and how many have vanilla frosting?
40 chocolate cupcakes and 30 vanilla cupcakes