sissyedgar
  • sissyedgar
Question Below!!! @misty1212
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
sissyedgar
  • sissyedgar
:)
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misty1212
  • misty1212
lol i totally answered this before!
sissyedgar
  • sissyedgar
you did? o, i lost it! :P

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More answers

misty1212
  • misty1212
one mile is 63360 inches so one inch is \(\frac{1}{63360}\) miles lets put in in a calculator and then write it in scientific notation
misty1212
  • misty1212
http://www.wolframalpha.com/input/?i=1%2F63360
sissyedgar
  • sissyedgar
Its not in scientific notation tho
misty1212
  • misty1212
\[0.00001578\] in scientific notation \[\huge 1.578\times 10^{-5}\]
sissyedgar
  • sissyedgar
o, lml
misty1212
  • misty1212
i moved the decimal and counted the spaces since it went left, the exponent is negative
misty1212
  • misty1212
i mean right
sissyedgar
  • sissyedgar
right
misty1212
  • misty1212
that is the answer to question one
misty1212
  • misty1212
ready for part two?
sissyedgar
  • sissyedgar
not yet, i have to take away what I had for one then put in whats rite! :P
misty1212
  • misty1212
kk
misty1212
  • misty1212
take your time and hurry up
sissyedgar
  • sissyedgar
ok! lol, i done
misty1212
  • misty1212
ok ready?
sissyedgar
  • sissyedgar
yes ma'am!
misty1212
  • misty1212
deposit another quarter
misty1212
  • misty1212
for the next one we have to divide
sissyedgar
  • sissyedgar
quick question
misty1212
  • misty1212
\[\huge \frac{2.5\times 10^4}{1.578\times 10^{-5}}\]
misty1212
  • misty1212
ok
sissyedgar
  • sissyedgar
did we round the 1st to the nearest 10th?
misty1212
  • misty1212
we rounded a bit, perhaps we should round some more
misty1212
  • misty1212
we can't really round to the nearest tenth, i think that is a typo our number had a zero in the tenths place
sissyedgar
  • sissyedgar
ooo, ok
misty1212
  • misty1212
maybe they meant round this \[\huge 1.578\times 10^{-5}\] to this \[\huge 1.6\times 10^{-5}\]
misty1212
  • misty1212
that would make life easier
sissyedgar
  • sissyedgar
mkay
sissyedgar
  • sissyedgar
lol
misty1212
  • misty1212
then the second question we can do \[\frac{2.5\times10^4}{1.6\times 10^{-5}}\]
misty1212
  • misty1212
\[2.5\div 1.6=1.5625\] and \[\frac{10^4}{10^{-5}}=10^{4-(-5)}=10^9\]
misty1212
  • misty1212
so we have \[1.5625\times 10^9\] as our answer again maybe you should round or you can leave it like that
sissyedgar
  • sissyedgar
lets round... it said round again
sissyedgar
  • sissyedgar
1.6 x 10^9
sissyedgar
  • sissyedgar
right?
misty1212
  • misty1212
ok
misty1212
  • misty1212
that is the answer to number 2
misty1212
  • misty1212
a billion has 9 zeros
sissyedgar
  • sissyedgar
okay... 1 more! YESS! :P
misty1212
  • misty1212
so 7.046 billion is \(7.046\times 10^9\) that is bigger than \(1.6\times 10^9\)
misty1212
  • misty1212
oh wait i misread the question sorry
sissyedgar
  • sissyedgar
rite
sissyedgar
  • sissyedgar
o, ok, lol
misty1212
  • misty1212
last job it so divide again \[\frac{7.046\times 10^9}{1.6\times 10^9}\]
misty1212
  • misty1212
about \(4.4\)
misty1212
  • misty1212
and now we are done!!
sissyedgar
  • sissyedgar
o, oky! TY MISTY!!!!!!!!!!!!! I wont loose it this time, i wrote it as u did! :P ~Hugz~
misty1212
  • misty1212
\[\huge \color\magenta\heartsuit\]

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