Factors & Multiples
List all the factors of 18
1,2,3,6,9,18
A class has 6 boys and 15 girls. What is the ratio of boys to girls in simplest form?
2 to 5
Write 72 ounces in 6 steaks as a unit rate.
12 oz/1 steak
Determine if the pair of rates is equivalent. Explain.
3 free throws made out of 7 attempts
9 free throws made out of 14 attempts
3/7 is not equal to 9/14
They are not equivalent.
If 45 cupcakes will serve 15 students, how many cupcakes are need for 30 students?
90 cupcakes
45/15 = 90/30
What is the LCM of 3, 9, and 15
45
An animal shelter has 36 kittens and 12 puppies. What is the ratio of puppies to kittens in simplest form?
1 to 3
Write 162 water bottles in 9 cases as a unit rate.
18 water bottles per case
Are the rates equivalent? Explain
Roman worked 3 hours for $12
Samay worked 9 hours for $36
Yes, both Roman and Samay earn
$4 per hour
Natalie takes 4 breaths per 10 seconds during yoga. At this rate, how many breaths would Natalie take in 2 minutes of yoga.
48 breaths
4/10= 48/120
*1 minute = 60 seconds
2 minutes = 120 seconds
What is the GCF of 21, 35, and 49?
7
Complete the ratio:
4:5 = 28: ___
35
Kayla divided 40.8 gallons of paint among 8 containers. How much paint is in each container?
5.1 gal/1 container
Are the rates equivalent? Explain.
$3 for 6 bagels
$9 for 24 bagels
No, they do not have the same unit rate
$3/6 bagels = $0.50/1 bagel
$9/24 bagels = $0.38/1bagel
For a store contest, 4 out of 65 people who visit the store will receive a free DVD. If 455 people visit the store, how many DVDs were given away?
28 DVDs
4/65 = 28/455
Aidan goes to swim practice every 4 days and to basketball practice every 6 days. In how many days will Aidan go to swim practice and basketball practice on the same day?
12 days
There are 36 students in Mr. Keaton's science class. If 5/12 of his students are girls, how many girls are in the class?
15 girls
Ola's mom took her and 4 friends to the movies. Ola's mom paid $40 for 5 student tickets. What was the price for 1 student ticket?
$8 per ticket
Are the rates equivalent?
288 miles on 12 gallons of gas
240 miles on 10 gallons of gas
Yes, they have the same unit rate
288/12 = 24/1
240/10 = 24/1
At a bus station, buses depart at a rate of 3 every 10 minutes. At this rate, how many buses would you expect to depart in one hour?
18 buses
3/10 = 18/60
*1 hour = 60 minutes
Fourteen boys and 21 girls will be equally divided into groups. Find the greatest number of groups that can be created if no one is left out.
7
At a mini-golf course there are 50 yellow golf balls, 45 red golf ball, and 65 blue golf balls. What is the ratio of blue golf ball to total number of golf balls in simplest form?
13:32
Cade shot 20 baskets in 4 minutes. Wyatt shot 42 baskets in 6 minutes. How many more baskets did Wyatt shoot per minute?
2 basket per minute
Cade shot 5 baskets per minute
Wyatt shot 7 baskets per minute
Are the rate equivalent?
12 juice bottles for $4
18 juice bottles for $6
Yes, they have the same unit rates
12/$4 = 3/$1
18/$6 = 3/$1
The ratio of red poms to yellow poms on a float is 5 to 7. If there are 392 yellow poms on the float, how many red poms are there?
280 red poms
5/7 = 280/392