Homework Help: math 116

Posted by meka a on Sunday, March 3, 2013 at 1:56pm.

Will someone please help me slove this problem.

A family refers to a group of two or more people related by birth, marriage,or adoption who resides together. In 2,00in Country A, the average family net worth was $460,000, and there were about 9.3 x 10 to the seventh power families. Calculate the total family net worthin Country A in 2000.
(Use scientific notation. Use the mutilpilcation symbol in the math palette as needed. Round to the nearest tenth as needed.)

math 116 - Steve, Sunday, March 3, 2013 at 2:16pm
460000 * 9.3 * 10^7 = 4.278 * 10^13
math 116 - meka a, Sunday, March 3, 2013 at 2:22pm
I don't undestand the final answer.
math 116 - Steve, Sunday, March 3, 2013 at 2:26pm
You got some serious studying to do then

460000 = 4.6 * 10^5
multiply that by 9.3 * 10^7

and you get 42.78 * 10^12
But that's not scientific notation. We need to make it

4.278 * 10^13

You can do the rounding needed.
math 116 - meka a, Sunday, March 3, 2013 at 2:33pm
Okay I think I have the correct answer. Is it 42,780,000,000,000
math 116 - Steve, Sunday, March 3, 2013 at 3:26pm
That may be the answer, but they specifically asked you to use scientific notation.

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