2007-09-23 06:50:45 · 5 answers · asked by Colette B 1 in Science & Mathematics ➔ Mathematics
you have to make the 5 in 5:15 into 1 - ie divide by 5. doing this to both sides gives 5:15 -> /5 -> 1:3
- they are equivalent ratios
2007-09-23 07:00:57 · answer #1 · answered by joel7681 2 · 0⤊ 0⤋
5:15
1. First, find the Highest Common Factor of 5 and 15 which is the whole number that goes into both 5 and 15 without a remanider. (5)
2. Divide each of the numbers by the answer to 1. [5 divided by 5 (1) and 15 divided by 5 (3)]
3. The resulting ratio is 1:3, therefore n=3.
2007-09-26 08:41:43 · answer #2 · answered by mr_maths_man 3 · 0⤊ 0⤋
1 : 3
Method
5 : 15 has '5' as a common factor. So divide both terms by '5'.
5/5 : 15/5 :: 1 : 3 :: 1 : n ( NB 'n' is 3).
2007-09-23 14:27:51 · answer #3 · answered by lenpol7 7 · 0⤊ 0⤋
I'd agree with Alice n=3
2007-09-23 14:01:29 · answer #4 · answered by teasel 1 · 0⤊ 0⤋
Do you mean find out n? If you do, it's 3. xx
2007-09-23 13:56:25 · answer #5 · answered by alydxxx 2 · 0⤊ 0⤋