The instructor of an introductory computer course wants to make a wall chart of a computer desktop for her students. To make it as realistic as possible, she would like the desktop icons to be proportional to the size of her 6’X6’ chart. If the icons on her 15” x 15” PC screen are 3/8” X 3/8”, how large should they be on her wall chart?
2006-07-23 13:02:21 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
This is a ratio problem:
3/8 = .375 "
6' = 72"
15/72 = .375/x, crossmulitplying gives
15x = 72(.375) =27
x = 27/15 = 1.8 = 1 4/5"
1 4/5" icon size
2006-07-23 13:24:57 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Let's see... 6' / 15" makes for a 1:4.8 scale ratio...
So 3/8 * 4.8 = 1.8, so the icons should be about 1.8" Ã 1.8".
2006-07-23 14:21:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
3/20"
2006-07-23 13:12:04 · answer #3 · answered by michael_gdl 4 · 0⤊ 0⤋
Of course I can find the right answer, but I was awake when my teacher was explaining simple ratios.
Maybe now you're awake, you should ask yours if they'd be kind enought to re-educate you, maybe with the intention this time of learning?
2006-07-23 13:10:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋
And people ask if mathematics is good for anything...
72"/15" = x/.375"
x = 1.8"
2006-07-23 13:07:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
1.175" X 1.175" if I made no errors in solving this in my head. My calculator is in the other room.
2006-07-23 13:15:40 · answer #6 · answered by miyuki & kyojin 7 · 0⤊ 0⤋
Yup, 1.8" is right!
2006-07-23 13:33:22 · answer #7 · answered by DM 2 · 0⤊ 0⤋