What’s the Ratio?
What is a ratio?
A comparison of two quantities.
Simplify the ratio 40 horses to 6 cows.
20:3
Write 175 children in 5 classes as a unit rate.
35 children per class.
What is a unit rate?
A rate with a denominator of 1.
The ratio of hot dogs to hamburgers is 8:3. If 272 hot dogs were sold, how many hamburgers were sold?
102 hamburgers.
Write the ratio of 9 board games to 3 video games in simplest form.
3:1
Simplify the ratio 49 swimmers to 21 runners.
7:3
$12 for 5 boxes of cereal. What is the cost per box?
$2.40 per box
Write 3,000 marbles in 200 jars as a unit rate.
15 marbles per jar.
The ratio of children to teachers is 14:5. If there are 30 teachers, how many children are there?
84 children.
What are the three different ways to write a ratio?
“to” form (9 to 3), colon form (9:3), and fraction form (9/3)
Simplify the fraction 16/30
8/15
A car travels 300 miles in 5 hours. What is the rate in miles per hour?
60 mph.
144 pages in 3 minutes. What is the unit rate?
48 pages per minute.
Malaya bought 32 pieces of candy for $16. How many pieces can she buy for $4?
8 pieces.
What is the ratio of consonants to vowels in ACCOMPLISHMENT?
Consonants = 9, Vowels = 4 → 9:4
Simplify the ratio 18 soccer players to 30 football players.
3:5
A printer prints 120 pages in 8 minutes. How many pages per minute?
15 pages per minute.
$7.65 for 1.8 lbs of gummy bears. What is the cost per pound?
$4.25/lb (rounded)
Three out of four students have a sibling. If there are 300 students, how many have siblings?
225 students.
There are 15 students on the debate team. 3 are boys. Write the ratio of boys to girls in simplest form.
1:4
Write 75 cupcakes to 15 cookies in two different ways in simplest form.
5 to 1 or 5/1 or 5:1
A movie theater sold 450 tickets in 6 hours. How many tickets per hour?
75 tickets per hour.
Which is the better deal? Option A: $15.40 for 3.5 lbs, Option B: $7.65 for 1.8 lbs.
Option B ($4.25/lb) is cheaper than Option A ($4.40/lb).
Brett paid $7.14 for a 42-pound bag. How much would a 63-pound bag cost?
$10.71