Step: 1

Let k be the actual length of the lake.

Step: 2

[Write the proportion.]

Step: 3

[Write the cross products.]

Step: 4

[Multiply.]

Step: 5

The actual length of the lake is 100 miles.

Correct Answer is : 100 miles

Step: 1

Let b be the length of the bridge.

Step: 2

[Write the proportion using the scale.]

Step: 3

[Write the cross products.]

Step: 4

[Multiply.]

Step: 5

The length of the bridge is 9 miles.

Correct Answer is : 9 miles

Step: 1

Let n be the actual height of the plant.

Step: 2

[Write the proportion using the scale.]

Step: 3

[Write the cross products.]

Step: 4

[Multiply.]

Step: 5

The actual height of the plant is 6.6 feet.

Correct Answer is : 6.6 feet

Step: 1

Let n be the actual length of the bat.

Step: 2

[Write the proportion.]

Step: 3

[Write the cross products.]

Step: 4

[Simplify.]

Step: 5

The actual length of the bat is 26 inches.

Correct Answer is : 26 inches

Step: 1

The scale is the ratio of size of the statue in the blue print to the size of the original statue.

Step: 2

[Write the ratio.]

Step: 3

= 15÷15 105÷15 = 1 7

[Divide both numerator and denominator by the GCF 15.]

Step: 4

The scale used by the sculptor is 1 in. : 7 ft.

Correct Answer is : 1 in. : 7 ft

Step: 1

Let n be the actual height of the tree.

Step: 2

[Write the scale and its related Proportion.]

Step: 3

[Write the cross products.]

Step: 4

[Multiply.]

Step: 5

So, the actual height of the tree is 18 meters.

Correct Answer is : 18 meters

Step: 1

The scale is the ratio of the length of sketch to the length of the Chapel.

Step: 2

[Divide both numerator and denominator by 100.]

Step: 3

The artist used a scale of 1 cm : 0.40 m.

Correct Answer is : 1 cm : 0.40 m

Step: 1

Let m be the distance between the two cities (in miles).

Step: 2

[Write a proportion.]

Step: 3

1 × m = 80 × 6.3

[Write the cross products.]

Step: 4

[Multiply.]

Step: 5

The distance between Rupert and Rushville is 504 miles.

Correct Answer is : 504 miles

Step: 1

Let n be the actual height of the tree.

Step: 2

[Write the proportion.]

Step: 3

[Write the cross products.]

Step: 4

[Simplify.]

Step: 5

The actual height of the tree is 8 meters.

Correct Answer is : 8 meters

Step: 1

The scale is 1 cm is equal to 2 m

Step: 2

1 cm on the map represents 2 m on the ground.

Step: 3

So, 2 cm on the map = 2 × 2 m = 4 m

Step: 4

Therefore, the actual height of the coconut tree is 4 m

Correct Answer is : 4 m

- Complementary, Supplementary, Vertical and adjacent Angles-Gr 7-Solved Examples
- Finding Missing Angles in Polygons-Gr 7-Solved Examples
- Scale Drawings-Gr 7-Solved Examples
- Solving Problems on Area of a Circles-Gr 7-Solved Examples
- Circumference of Circles-Gr 7-Solved Examples
- Perimeter and Area of Composite Figures-Gr 7-Solved Examples