25
1.3 ina fractionof 12 =13/121.3/12 * 10/10 = 130/120 or 13/12
12 + 5 equals...
13 13.5
(5+12+13)/3 = 10 is the average
25
1.3 ina fractionof 12 =13/121.3/12 * 10/10 = 130/120 or 13/12
x>5
12 + 5 equals...
(4*10+11+2*12+13+2*14)/10 = 11.6
(10, 12, 12, 13, 13)
13 13.5
Add the following: 10 x 10 plus 2 x 10 plus 3 x 10 plus 2 x 3 That makes it easier to do it without a pen or calculator.
13/3 = 4 1/3 (To solve it you just divide 13/3, the answer is 4 but there is a remainder, so to solve for that remainder you just put it on top of the 3)
13-3x = 43 -3x = 43-13 -3x = 30 x = -10
(10, 12, 12, 13, 13)
(5+12+13)/3 = 10 is the average