Vocabulary
Define ratio
A comparison of two or more quantities
Write the following ratio in three different ways excluding sentence form
There are 2 teachers for every 30 students
2:30, 2 to 30, and 2/30
In one batch here are 3 scoops of kool aid for every 5 cups of water. How much will be needed if you want to make 4 batches?
12 kool aid and 20 cups of water
There are 2 scoops of ice cream for every slice of cake. If there are a total of 15 food items then how many are cake?
5 pieces of cake
Define equivalent ratio
Two ratios are equivalent when the first ratio was multiplied by the same factor to get the second ratio
There are 2 scoops of ice cream per slice of cake. Write the ratio of cake to ice cream.
1:2
Each meal has 26 french fries per burger. If you had to split this meal with one of your siblings then how much would you each get of french fries and burger?
13 french fries and half a burger
There are 5 dogs for every 3 cats in a kennel day care. If there are a total 40 animals in the daycare then how many are cats?
15 cats
Define unit ratio
a unit ratio is when one of the numbers in the ratio is one
There are 31 days in October. Write the ratio for the amount of odd number dates to even number dates.
16:15
There are 11 pumpkins for every house. If there are 15 houses then how many pumpkins are there?
165
There are 3 teachers for every 30 students. If there are a total of 99 people in the building then what is the ratio of students to teachers.
90 students to 9 teachers
Define factor
a number that is being multiplied
There is a total of 32 students in a class and only 14 are males. What is the ratio of females to males?
18:14 or 9:7
There are 28 cheese sticks and 14 doritos bags. You want to give an equal amount to 4 people. How much would each person get?
7 cheese sticks and 3.5 dorito bags
There are a total of 31 students in each classroom. In each classroom there are 12 females. If there are 11 classrooms then how many males are there in all?
209 males