Ratios

A _______ is a comparison between two quantities in which for every a units of one quantity there are b units of another quantity.

Mrs. Dingle has 8 boys and 4 girls in her class. What is the ratio of boys to girls in simplest form?

• 1:2

• 8:4

• 2:1

• 4:8

Sally makes bracelets with 2 charms for every 8 beads. Choose the ratios that are equivalent.

• 8 charms 32 beads

• 8 charms 2 beads

• 4 charms 16 beads

• 1 charm 2 beads

In a class of 24 students 8 wear glasses. How mant students would you expect to wear glasses out of 96?

• 32

• 288

• 24

• 12

A small batch of cookie dough calls for 2 cups of flour and 1 egg. A large batch has the same ratio of ingredients and calls for 6 cups of flour. How many eggs are in the large batch?

• 5

• 3

• 2

• 0

There are 3 chocolate chip cookies for every 2 oatmeal raisin cookies in the box is an example of a _________.

• rate

• unit rate

• ratio

• equivalent ratio

To multiply or divide two numbers by the same number is called

• unit rates

• scaling

• unit ratios

• equivalent ratios

A _________ compares one part of the group to the whole group.

• ratio

• part to whole ratio

• part to part ratio

• rate

A __________ compares part of the group to another part of the group.

• ratio

• part to whole ratio

• part to part ratio

• rate