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

1 Answer
May 29, 2017

Answer:

#5.7 times 10^(9)#

Explanation:

#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.