Scales and Ratios

Which of the following scales would create the BIGGEST drawing of a park?

• 1 in to 20 ft

• 1 in to 50 ft

• 1 in to 75 ft

• 1 in to 100 ft

The scale of a map says that 2 cm represents 7 m. What is the scale factor?

• 1 cm to 7 m

• 1 cm to 3.5 m

• 1 cm to 14 m

• 1 cm to 0.29 m

• YES

• NO

Find the unit rate (how many avocados per bag):

42 avocados in 7 bags

• 7 avocados/bag

• 6 avocados/bag

• 7 bags/avocado

• 14 avocados/bag

Find the unit rate:

48 markers in 8 packs

______ markers per pack

Write the ratio as a fraction in simplest form.
15 girls to 6 boys   

• 5 to 2

• 5/3

• 3 to 5

• 5/2

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

What is the scale factor?

• 4

• 6

• 2.5

• 1.5