WK 22: Proportions Scale and Conversions

Sharon is decreasing the size of a diagram of a leaf that is 30 centimeters long by 10 centimeters wide. If the reduced diagram is 4 centimeters wide, how long will it be?

Select the proportion that represents this problem

• $\frac{30}{10}=\frac{4}{x}$

• $\frac{30}{10}=\frac{x}{4}$
  

• $\frac{30}{4}=\frac{10}{x}$

• $\frac{4}{30}=\frac{10}{x}$

Tags

CCSS.7.RP.A.2C

On Carlos’s map, Greenville and North Valley are 4.5 inches apart. The scale on his map is 1 inch = 20 miles. How far is Greenville from North Valley?

Select the proportion that represents this problem

• $\frac{1}{20}=\frac{4.5}{x}$

• $\frac{1}{20}=\frac{x}{4.5}$
  

• $\frac{1}{4.5}=\frac{x}{20}$
  

• $\frac{4.5}{1}=\frac{20}{x}$
  

Tags

CCSS.7.RP.A.2C

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft
• 7.5 ft 
• 4.5 ft
• 45 in

Tags

CCSS.7.G.A.1

An adult elephant that is 8 ft tall casts a shadow that is 4 ft long. Find the height of a statue that casts a 9 ft shadow.

• 36 ft 
• 2 ft 
• 16 ft 
• 18 ft 

Tags

CCSS.7.RP.A.3

A tree stands 20 ft high with a shadow of 2 ft long.  If the tree next to it is 40ft tall, how long would its shadow be?

• 4ft
• 2ft
• 1ft
• 3ft

Tags

CCSS.7.RP.A.3

In an animal shelter, the ratio of cats to dogs is 3 to 5. If there are a total of 25 dogs at the shelter, how many cats do they have?

• 15
• 18
• 21
• 32

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

To make plant fertilizer, you mix 12 ounces of Lime with every 10 ounces of water. If you use 80 ounces of water, how much lime do you need?

• 96 ounces
• 80 ounces
• 1.5 ounces
• 66.67 ounces

Tags

CCSS.6.RP.A.3B

The scale of a map says that 6 cm represents 15 km.
What is the actual number of kilometers that is represented by 16 cm on the map?

Select the correct proportion that represents the problem

•  $\frac{6}{15}=\frac{16}{x}$  

•  $\frac{15}{6}=\frac{16}{x}$  
  

•  $\frac{6}{16}=\frac{x}{15}$  
  

Tags

CCSS.7.RP.A.2C

A recipe calls for 32 ounces of pasta to be used. How many pounds of pasta is that if 1 ounce equals about 0.06 pounds?

• 533.3 pounds

• 32 pounds

• 1.92 pounds

Tags

CCSS.6.RP.A.3D

One-half cup is 4 fluid ounces. How many fluid ounces will 7¾ cups be?

• 0.26 fl. oz.

• 0.97 fl. oz.

• 15.5 fl. oz.

• 62 fl. oz.

Tags

CCSS.6.RP.A.3D