by how many orders of magnitude does 1470000000 differ from 8340
show workings please
thanks for whoever answers question

Sarah2014
I think its 1.47 x10 to the power of 9 and 8.34 to the power of 3. im not sure if this is right though sorry

asd789
5 orders of magnitude

Sarah2014
could you please tell me how its 5?

Aoife_9776
Orders of magnitude? I don't think we studied this

carolinaaplasencia
It is 6 orders of magnitude
1470000000= 1.47 x 10(to the power of 9)
8340= 0.834 x 10(to the power of 4)
9  4 = 5 :)
How I rounded up..?
the number has to be between I and 10 ughh it is confusing to explain I will only confuse you soz

carolinaaplasencia
sorry imeant 5, 5 orders of magnitude:)

MM97
1470000000 is nearer to 1,000,000,000 than to 10,000,000,000 so has an order of magnitude of 9.
8340 is nearer to 10,000 than 1000 so has an order of magnitude of 4.
The difference is 94=5
Hope that helps

Gracemcd
When you don't even know what orders of magnitude are

MM97
Order of magnitude is a number to the nearest 10, 100, 1000 etc order 1, 2, ,3 respectively

MM97
Unlikely to come up so don't stress

DONALDTRUMP4PREZ
Can someone please explain what this question even is?

MM97
Higher level maths
Order of magnitude estimates how big one number is in comparison to another
http://www.cnocmhuiregranard.ie/wordpress/wpcontent/uploads/2011/03/NumberJCHL.pdf

Sarah2014
why don't you leave it as 8.340 instead of 0.8340? sorry im so confused haha

Aoife_9776
When did this question come up last?

MM97
I don't think it did. It's on crriculum but only came up on sample papers I think Aoife.
Sarah 0.834 is incorrect scientific notation. 8.34. X 10^3 is correct then round up as 8>5 so 4 orders of magnitude.

clark13
a question about comparing the radii of pluto and earth using orders of magnitude came up on my mocks

Sarah2014
@MM97 I left 8.34 as it is but others wrote it as 0.834 . do you move the decimal place left or right? would it not be 10^2 ?

Aoife_9776
It's to the left if the ten's power is negative, and to the right if it's positive

Sarah2014
ok thank you!

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