40
70
-40
(28 ÷ 40) x 100 =0.7 x 100 =7028 ÷ (40 x 100) =28 ÷ 4000 =0.007
They are 28 (28 divided by 7 is 4).
The average of a series of numbers is their sum divided by however many numbers there are: in this case you would calculate: (16 + 40) / 2 =56 / 2 =28 Therefore the average of 16 and 40 is 28.
28% of 40= 28% * 40= 0.28 * 40= 11.2
39.2 Because 28 divided by 10 is 2.8 which is 10% 2.8 x 4 = 11.2 which is 40% Add them together and you get 39.2 (i think. my mental maths isn't amazing)
It is: 28/40 times 100 = 70%
3 divided 28 = 0.10714285714285714
30.2143
0.1071