Proportions and Cross Products

Which ratios are equivalent:

Find the unit rate for 360 dollars for 6 hours.

• $6 per hour

• $60 per 6 hours

• $60 per hour

The missing ratios in the ratio table are

Find the unit rate for 100 book and 5 boxes.

• 20 books per 5 boxes

• 20 books per box

• 100 books per 5 boxes

Solve.

• y = 8

• y = 1/8

• y = 40

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve the proportion:

• 25

• 20

• 49

• 4

Q1. What is the value of pi?

• 1) 6.25

• A) 16

• 2) 4

• 3) 3.6

We use Cross Multiplication when working with...

• Fractions

• Decimals

• Proportions

• Equations

When determining whether Proportions are Equal, we need to do which of the following?

• addition

• multiplying straight accross

• dividing

• cross multiplication