Jody plans to have a picture enlarged. The picture is now 2 in. wide by 3 in long. When enlarged, the length will be 42 in. What will be the width
2006-10-09 14:40:43 · 9 answers · asked by Monique 1 in Science & Mathematics ➔ Mathematics
Set up a proportion
2in/xin 3in/42
cross multiply
42*2=84
3*x=3x
x=84/3
x=28
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2006-10-09 14:43:21 · answer #1 · answered by ♥ The One You Love To Hate♥ 7 · 1⤊ 0⤋
The picture will retain the same ratio of width and height. Let X = the new length - there fore:
2/3=X/42 multiply both sides by 42:
84/3=X X=28"
2006-10-09 21:47:33 · answer #2 · answered by LeAnne 7 · 1⤊ 0⤋
42 = 14 inches times the length
so to keep it in proportion you have to times 14 x width (or 14 x 2)
which =28 so the picture is 28" x42" now, instead of 2"x3"
2006-10-09 21:58:56 · answer #3 · answered by lil'rusty 3 · 0⤊ 0⤋
42/3=14 so 2*14=28 and that is the answer.
2006-10-09 21:42:23 · answer #4 · answered by ilikemath2002 3 · 3⤊ 0⤋
This is a ratio problem
2:3::x:42
Or, equivalently:
2/3=x/42
Multiply both sides by 42:
28=x
2006-10-09 21:43:29 · answer #5 · answered by mediaptera 4 · 1⤊ 0⤋
If the difference is one inch then width is 41?? best guess.
Vin
2006-10-09 21:43:03 · answer #6 · answered by Anonymous · 0⤊ 1⤋
41 inches
2006-10-09 21:43:15 · answer #7 · answered by Anonymous · 0⤊ 1⤋
2/3=x/42
84=3x
x=28
28in. wide
2006-10-09 21:44:58 · answer #8 · answered by gluten infection 2 · 1⤊ 0⤋
hey - how old are you? is this a problem on your homework? isn't this sort of cheating?
2006-10-09 21:48:46 · answer #9 · answered by Madikam 2 · 0⤊ 1⤋