Allison has a poster that is 15 in by 18 in. What will the dimensions of the poster be if she scales it down by a factor of one-third ? my answer is 5in by 6in ...double checking

Question

jim_thompson5910 · Answer

Correct. You divide each dimension by 3.

anonymous · Answer

Thanks @jim_thompson5910

jim_thompson5910 · Answer

you're welcome

anonymous · Answer

can you help me with another post i had put up?

jim_thompson5910 · Answer

sure

anonymous · Answer

A scale drawing of a bedroom is shown below. The scale is 1 : 30. Show your work to determine the area of the room in square feet. Length is 3in and width is 4in

jim_thompson5910 · Answer

The "1:30" means you multiply each dimension on the paper by 30 to get the actual dimension

Example: the length on paper is 3 in, but in reality it is 3*30 = 90 inches

jim_thompson5910 · Answer

Once you know the dimensions of the actual room, you can compute the area.

anonymous · Answer

then 30*3?

jim_thompson5910 · Answer

do you see how I got the new length?

anonymous · Answer

4*30

jim_thompson5910 · Answer

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jim_thompson5910 · Answer

yep, the new width is 3*40 = 120 inches

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