The world population in 1995 was approximately 5.7 billion people. How do you write this number in standard form?

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Answer 1 · 2017-05-29T22:42:22

#5.7 times 10^(9)#

#5.7# #"billion"# #= 5,700,000,000#

Numbers expressed in standard form are in the form #X times 10^(n)#.

#X# must be a number between #1# and #10#.

In this case, #X# will be #5.7#.

#n# is the number of decimal places shifted to reach #X#.

We need to move the decimal point #9# places to the left to have it in between #5# and #7#.

#Rightarrow 5,700,000,000 = 5.7 times 10^(9)#

#therefore 5.7# #"billion"# #= 5.7 times 10^(9)#

Therefore, the world population in #1995# was approximately #5.7 times 10^(9)# people.