find the missing length of two similar rectangles if the first has length n inches and width 16 inches and the second has length 15 in and width 12 inches.
2007-10-25 14:55:49 · 10 answers · asked by Anonymous in Education & Reference ➔ Homework Help
in your rectangle example the answer is 20
n/16 = 15/12
12n = 15*16 = 240
n = 240/12
n = 20
2007-10-25 15:00:40 · answer #1 · answered by Will 3 · 0⤊ 0⤋
n/16 = 15/12
Multiply 15/12 by 16 to isolate N, this gives you an answer of N=20 inches
2007-10-25 22:02:24 · answer #2 · answered by GRRTheGymnast 4 · 0⤊ 0⤋
n=20
2007-10-25 21:59:58 · answer #3 · answered by pokemike01 4 · 0⤊ 0⤋
cross multiply. i'm going to pray this comes out right
a c
--- = ---
b d
ad=bc
to solve for, let's say, a, you'd just divide both sides by a
d=bc
----
a
I set it up like this because that's usually how it's written on paper so that might help you more than a / division sign. Hope this helped.
Ok so it doesn't work out right...the "a" is supposed to be above the "b" and the "c" is supposed to be above the "d" in the original so it's a/b=c/d...
2007-10-25 22:02:58 · answer #4 · answered by rivendellrose2005 4 · 0⤊ 0⤋
X 8
__ ___
4 6
(you do 6 divided by 3, times 2)
(you do 8 divided by 3, times 2)
X= 5 and one third.
2007-10-25 22:01:39 · answer #5 · answered by nibor194 3 · 0⤊ 0⤋
n/16 = 15/12
16 x (n/16) = 16 x (15/12)
Simplify
2007-10-25 21:59:30 · answer #6 · answered by lonasunde 2 · 0⤊ 0⤋
x/4=8/6
6x=32
x=5.2
n:16::15:12
12n=240
n=20
2007-10-25 22:01:52 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
n= 20.
trust me.
2007-10-25 22:03:53 · answer #8 · answered by harry4lif 3 · 0⤊ 0⤋
cross multiply
2007-10-25 21:59:28 · answer #9 · answered by Eparuki 2 · 0⤊ 0⤋
ummm...yea im in 8th grade srry i cant help u i wish i could
2007-10-25 21:59:37 · answer #10 · answered by missy101 1 · 0⤊ 1⤋