GCF
GCF og 21, 35, and 49
7
LCM of 6 and 15
30
A class has 6 boys and 15 girls. What is the ratio of boys to girls?
2/5 or 2:5 or 2 to 5
Write as a unit rate.
45 miles in 3 hours
15 miles per hour
Robin can clean 72 rooms in 6 days.
How many rooms can Robin clean in 9 days?
108 rooms
GCF of 24 and 60
12
LCM of 6, 12, and 15
60
An animal shelter has 36 kittens and 12 puppies available for adoption. What is the ratio of puppies to animals?
1/4 or 1:4 or 1 to 4
The Reyes Family bought four concert tickets for $250. What was the price per ticket?
$62.50 per ticket
At the market, 8 batteries cost $10.
How much do 6 batteries cost?
$7.50
GCF of 24, 40, and 56
8
LCM of 3, 9, and 15
45
Karla found that 6 of the 30 students in her class own a bicycle. What is the ratio of students that own a bicycle to students that do not?
1/4 or 1:4 or 1 to 4
Find the number of meters per second of each event. Round to the nearest tenths.
200 meters in 19.3 seconds
10.4 meters per second
Frances can complete 91 oil changes in 7 days.
How many oil changes can Frances complete in 11 days?
143 oil changes
A grocery store clerk has 16 oranges, 20 apples, and 24 pears. The clerk needs to put an equal number of apples, oranges, and pears into each basket. What is the greatest number of baskets that can be made so that no fruit is left?
4 baskets
Inez waters her plants every two days. She trims them every 15 days. She did both today. When will she do both again?
30 days
A pet store sold 10 birds, 14 dogs, and 8 cats. Write the ratio of cats sold to animals sold.
1/4
An adult blinks about 450 times in 30 minutes. A 12-year old blinks about 150 times in 15 minutes. How many more times does an adult blink in one hour than a 12-year old?
300 blinks
At the market, 8 apples cost $4.
How much do 9 apples cost?
$4.50
A gardener has 27 pansies and 36 daisies. He plants an equal number of each type of flower in each row. What is the greatest possible number of pansies in each row?
9 pansies
Ernesto has painting class every 2 weeks. Kamala has pottery class every 5 weeks. Ernesto and Kamala met at the art building for class this week. How many weeks will it be until they see each other again?
10 weeks
Katie loves to read! In the last few months she has read 3 graphic novels, 2 mysteries, 4 sci-fi novels, and 21 comic books.
What is the ratio of graphic novels to comic books?
1/7
Population density is the number of people per square unit of area. Find the population density for each state listed below. Round to the tenths.
Florida
Population: 18,300,000; Area (square miles): 65,758
Wyoming
Population: 522,000; Area (square miles): 97,818
FL: 278.3 people/sq mile
Wyoming: 5.3 people/sq mile
Which of these is an example of typing at a rate of 42 words per minute?
a) Typing 16 words in 2/3 of a minute.
b) Typing 16 words in 3/2 of a minute.
c) Typing 28 words in 3/2 of a minute.
d) Typing 28 words in 2/3 of a minute.