23.9k views
2 votes
Sarah has a floor plan of a room that is 5 inches wide and 6 inches long. The scale of the floor plan is 1/ 3 inch = 2 ft. What is the actual width of the room?

2 Answers

1 vote

Answer:

To answer this question, you could dad a couple things.

One of them is to set up a proportion with you original scale and then solve for the width.

1/3 inch:2 ft = 5 inches:x feet

Use cross multiplication to get:

2 x 5 = 1/3x

10 = 1/3x; divide both sides by 1/3

x = 30 feet

Another way to do this would be to figure out how many groups of 1/3 there are in 5 inches or 5÷1/3. This answer is 15. This means it would be 15 groups of 2 feet or 30 feet.

The width is 30 feet.

Explanation:

User Charease
by
9.0k points
6 votes
To answer this question, you could dad a couple things.

One of them is to set up a proportion with you original scale and then solve for the width.

1/3 inch:2 ft = 5 inches:x feet

Use cross multiplication to get:
2 x 5 = 1/3x
10 = 1/3x; divide both sides by 1/3

x = 30 feet

Another way to do this would be to figure out how many groups of 1/3 there are in 5 inches or 5÷1/3. This answer is 15. This means it would be 15 groups of 2 feet or 30 feet.

The width is 30 feet.

User Leonaka
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.