nCn formula
16:30
the value of 8 is 80 as it is in the tens place
Write down the value of the 4 in the number 9048
To convert a decimal to a fraction, write it as a decimal fraction. Hence 0.8 / 1.0 Notice we write it over 1.0. We always write it over '1 point' and since the decimal is to only one decimal place we only write in one zero. Hence 0.8 / 1.0 Cancel down the decimal point, hence 08/10 Ignore the prefixed zero' to the '8'. Hence 8/10 Since both '8' and '10' are even numbers we can cancel down by '2' Hence 8/10 = 4/5 This will not cancel any further as '5' is a prime number. It follows that 0.8 = 4/5 NB If the decimal is to two/three decimal places then you write in 'two/three' zeroes. e.g. 0.88 = 0.88/1.00 or 0.888 = 0.888 / 1.000 And then proceed as above.
10
CH4.
tenths
16:30
FeO, Fe3O4, and Fe2O3
The answer depends on what the formula is for: its area, ratio of sides, size of angles, etc.
the value of 8 is 80 as it is in the tens place
Write down the value of the 4 in the number 9048
NH3(aq) in water droplets (mist, condensed).(Though some prefer to write down NH4OH, this is not the formula of a constant arrangement, any value of n from 0 till 6 will do in NH3.nH2O, not only n=1)
R=1- n√scrap value/original cost x100
7
tilt,check value,etc..................
11/66 Cancel down by '11' Hence 1/6 is the simplest form