Ratios
Determine whether the ratios are equivalent.
2 : 3 and 4 : 9
Not Equivalent
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag.
18 red marbles; 6 to 9
27 Blue Marbles
For every 3 tickets you sell, your friend sells 4 tickets. You sell a total of 12 tickets. How many tickets does your friend sell?
16 Tickets
FINDING UNIT RATES Write a unit rate for the situation
24 animals in 2 square miles
12 animals/miles squared
3 Pints = _______cups
6 Cups
In a pet shop, there are 12 dogs, 9 cats, and 17 fish. Write the ratio.
cats to dogs
9:12
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag
3 red marbles; 3 : 7
7 Blue Marbles
A store sells 2 printers for every 5 computers. Th e store sells 40 computers. How many printers does the store sell?
16 Printers
FINDING UNIT RATES Write a unit rate for the situation
$100 for every 5 guests
$20/guest
5 Feet = ______ inches
60 Inches
Stacia has 28 red and blue marbles. The ratio of red to blue marbles is 1 : 6. How many blue marbles does Stacia have?
24 Blue Marbles
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag
12 red marbles; 4 : 3
9 Blue Marbles
A soccer team has 12 girls and 18 boys. The team is split into groups that have the same ratio of girls to boys as that of the whole team. How many girls are in a group that has 9 boys?
6 Girls
FINDING UNIT RATES Write a unit rate for the situation
28 saved in 4 weeks
$7/ Week
48 oz = ______ lbs
3 lbs
Kendall reads 8 pages each night. DeSean reads 32 pages every 4 nights. Are Kendall and DeSean reading at the same rate?
Yes They are reading at the same rate.
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag
6 red marbles; 2 for every 5
15 Blue Marbles
For every 2 cars you wash, your friend washes 3 cars. You wash a total of 8 cars. How many does your friend wash?
12 Cars
FINDING UNIT RATES Write a unit rate for the situation
228 students in 12 classes
19 students per class
32 fl oz = ______cups
4 cups
Select all the ratios that are equivalent to 8 : 6.
4 : 3
24 : 36
32 : 24
20 : 12
4 : 3
32 : 24
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag
10 red marbles; 5 to 1
2 Blue Marbles
You are making a salad. The ratio of olives to croutons is 5 : 3. You put 12 croutons in your salad. How many olives do you put in your salad?
20 Olives
FINDING UNIT RATES Write a unit rate for the situation
$12.50 for 5 ounces
$2.5/oz
You are scuba diving at Devil’s Den Spring. The maximum depth of the cave is 54 feet. How deep is the cave in yards?
18 yards