In 2000, in Country A, the average family net worth was $320,000 and there were about 7.5 times 10^7 families. Calculate the total family net worth in Country A, in 2000.

Question

kainui · Answer

So if you have a family net worth of 30 dollars and there were 2 families, what would be their total family net worth? 30 dollars per family times 2 families is 60 dollars. If you still need help with the scientific notation I can help. =D

anonymous · Answer

so I would take 320000 and times it by 7.5?

anonymous · Answer

the answer would 2,4000,000

kainui · Answer

That's not 7.5, that's 7.5x10^7. Remember 10^7 is 10*10*10*10*10*10*10=10000000 which is just a 1 with 7 zeroes behind it. 7.5 times 1 is just 7.5, so you can replace the 1's place is 7 and then 5 with 6 zeroes behind it. Does that make sense or just confuse you more?

anonymous · Answer

Sorry confusing me more. Do I times the 7.5 by the 10^7 first then do the other multiplication after?

kainui · Answer

Yeah, although it really doesn't matter which order you do them in. But it makes more sense to do that 7.5*10^7 first because that's one number. They just compressed down the 0's by writing it at 7.5*10^7 instead of 75000000, that's all.

anonymous · Answer

so the answer is 75000000?

anonymous · Answer

right?

kainui · Answer

Nope, you still have to multiply that times the other number.

anonymous · Answer

The problem says to use scientific notation. Round to the nearest tenth as needed. Not sure what that means when trying to solve this problem.

anonymous · Answer

um i am even more confused now