Scale With Proportions

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

Two ratios that are equal are

• similar sides

• unit rates

• congruent

• proportional

Tags

CCSS.7.RP.A.2D

The local bakery uses 1.75 cups of flour in each batch of cookies.  The bakery used 5.25 cups of flour this morning. How many batches of cookies did they make?

• 3 batches

• 3.5 batches

• 9.25 batches

• 7 batches

Tags

CCSS.6.NS.B.3

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4

• 5:11

• 2:5

• 6:5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which proportion can be used to find the length of x?

• 8/x = 12/24

• 8/24 = 12/x

• 8/12 = x/24

• 12+8=24+x

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

A map uses a scale of 2 centimeters = 4 miles. Susan's drive to work is represented on the map as traveling 1 cm north and 2.5 cm west. Which proprtion can be used to determine the number of miles to work?

• 2/4 = 3.5/x

• 1/2 = 3.5/x

• x/2 = 1/3.5

• x/4 = 2/3.5

Tags

CCSS.7.RP.A.3

The rugs are similar. What is the width of the larger rug, x, in feet?

• 4 ft

• 4 1/2 ft

• 5 ft

• 5 1/2 ft

Tags

CCSS.HSG.SRT.B.5

The scale on a map reads 4 cm = 1.6 m. The relationship on the map is graphed on a coordinate grid, with centimeters on the y -axis and meters on the x -axis. The rate of change is....

• 0.45 centimeters per meter

• 0.45 meters per centimeter

• 2.5 meters per centimeter

• 2.5 centimeters per meter

Tags

CCSS.7.RP.A.2D

In a photograph a stadium measures 5 inches across by 3 inches high. The actual stadium measures 300 feet across. Which equation can be used to find x, the height of the stadium.

• 3x/5 = 300/x

• 5/300 = 3/x

  ​

• 300/5 = 3/x

  ​

Tags

CCSS.7.RP.A.3

There is a picture frame with a width of 7 and a height of 4. Which proportion can be used to calculate the dimensions of a smaller frame with a width of 5?

• 5/7 = 4/x

• 7/5 = 4/x

• 4/x= 5/7

Tags

CCSS.7.RP.A.2B