Ratios Cross Multiplying

• A

• B

• C

• D

• 45

• 13

• 65

• 54

What is the ratio of white squares to total squares?

• 5 to 9

• 9 : 5

• 4 : 9

• 5 / 4

• 6 to 4

• 3 to 1

• 5 to 3

• 4 to 6

What ways below could we use to determine if two ratios are equivalent? (3)

• Multiplying or dividing by the same factor.

• Simplifying both ratios.

• Adding or subtracting by the same number.

• Cross multiplying to see if they have equal products.

• 9 to 5

• 5 to 9

• 10 to 5

• 2 to 1

2 d : 3 f = 28 d : __ f

4d : 3w = 56d : __w

Do not label your answer.

Determine which ratio is an equivalent ratio of birds to hamsters.

• 12 birds to 15 hamsters

• 30 birds to 24 hamsters

• 24 birds to 35 hamsters

• 25 birds to 18 hamsters

Vinny decides to order high tops at a ratio of 5 black to 8 white. If he orders a total of 169 high tops, how many of them would be black high tops? 5b : 13 total = __b : 169 total Do not label your answer.