2007-08-10 02:46:10 · 5 answers · asked by ednalyn h 1 in Science & Mathematics ➔ Mathematics
Do not know if second number is 12/7 or 1 2/7.
Let unknown number be x and let other number be 12/7 as is written.
(5 / 3 + 12 / 7 + x) / 3 = 2
5 / 3 + 12 / 7 + x = 6
x = 126 / 21 - 36 / 21 - 35 / 21
x = 55 / 21
2007-08-10 03:54:02 · answer #1 · answered by Como 7 · 1⤊ 0⤋
If the average of three numbers is 2, then the sum of the three numbers must be 6.
1 2/3 + 12/7 + X = 6
2007-08-10 03:01:35 · answer #2 · answered by davidosterberg1 6 · 0⤊ 0⤋
let x = number
(1 2/3 + 12 /7 + x)/3=2
5/3+12/7+x=6
x=6-5/3-12/7=55/21
2007-08-10 02:49:19 · answer #3 · answered by ptolemy862000 4 · 1⤊ 0⤋
The recommend is all the numbers extra jointly then divided by the total of numbers you extra, for this reason 3. To get the respond you may characteristic 9 + 14, which equals 23. Then discover out what divided by 3 will equivalent 12 (12 x 3 = 36) Now you in basic terms could verify what quantity you may characteristic to 9 and 14 to equivalent 36. 9 + 14 = 23 and 36 - 23 = 13, so the 0.33 quantity is 13 desire i helped!(:
2016-12-11 15:57:41 · answer #4 · answered by ? 4 · 0⤊ 0⤋
[ 4 + 12/7 + x ] /3 =2
[ 28 + 12 + 7 x ] / 7= 6
7x = 42 - 28 - 12 = 2
x = 2/7
2007-08-10 03:06:13 · answer #5 · answered by CPUcate 6 · 0⤊ 0⤋