Answer:
2(10x10x10)
Step-by-step explanation:
In 3 metres there are 300 centimetres. Each centimetre on the scale is 300 centimeters, or a ratio of 1:300. The tree is 5 centimetres on the scale. Each centimeter on the scale is 300 centimetres, therefore 5 centimetres on the scale is 1500 centimetres. 1500 centimetres is equal to 15 metres.
Answer:
81/100 of the atmosphere consists of those two elements
Step-by-step explanation:
3/5+21/100 > 81/100
Answer:
Number of carbon atoms present in the sample are 391.
Step-by-step explanation:
We are given that,
Ratio of carbon to hydrogen atoms = 1 : 4
It is given that a sample of methane consists of 1564 hydrogen atoms.
Let the carbon atoms in the sample = x
So, we have the relation,

i.e. 
i.e. 
i.e. x= 391
Hence, the number of carbon atoms present in the sample are 391.