Friday

December 19, 2014

December 19, 2014

Posted by **marko** on Wednesday, May 16, 2012 at 10:02pm.

what is the actual length of a room measuring 30 cm on the floor plan?

I got to 20 is that correct?

- measurement -
**Ms. Sue**, Wednesday, May 16, 2012 at 10:13pmNope.

How have you been taught to solve this kind of problem?

I can show you two different ways.

- measurement -
**marko**, Wednesday, May 16, 2012 at 10:15pmi cant figure how to do this can you explain

- measurement -
**marko**, Wednesday, May 16, 2012 at 10:25pmis it 90

i got

2cm/ 3m = 30 cm/n

= 2n = 3 (30)

= n = 90

- measurement -
**Ms. Sue**, Wednesday, May 16, 2012 at 10:28pmOne way to do this is to set up a proportion or ration.

2 cm is to 3 m as 30 cm is to ? m

2/3 = 30/x

Cross multiply and solve for x.

2x = 90

Divide both sides by 2.

x = 45 m

**Answer this Question**

**Related Questions**

Geometry - On the scale drawing of a floor plan 2 inches= 5 ft. A room is 7 ...

math - a floor plan has been prepared for a new building, drawn to a scale of 1/...

math - a. The sales representative informs you that there is a total of 96 ...

math - a. The sales representative informs you that there is a total of 96 ...

Math - A floor plan has a scale of 1/4 in : 5 ft. Find the length on the ...

algebra and geometry - On a floor plan, a room measures 2 inches by 5 inches. If...

Math - The floor areas of a living room on a house plan measures 3 1/2 inches by...

Math - The floor areas of a living room on a house plan measures 3 1/2 inches by...

Math - Mariko has an 80 inches = 1 inch scale- drawing of the floor of her house...

math - There are a total of 50 houses with two floor plans. use x to repre4sent ...