SOLUTION: Apply scientific notation to scientific models/ word problems. 1. Suppose the number of people who live in St. Jerome and pay a water bill is 1,430,000. If the average water

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Question 168172: Apply scientific notation to scientific models/ word problems.

1. Suppose the number of people who live in St. Jerome and pay a water bill is 1,430,000. If the average water bill per month is $80, what is the total amount of money received by the city for water yearly? (Write answer in scientific notation form.)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
1,430,000 is 1.43%2A10%5E6 in scientific notation
There must be only 1 digit to the left of the decimal point
It's also equal to 14.3%2A10%5E5, but that would not be
scientific notation
The average monthly bill times 12 would be the average
yearly bill
80%2A12+=+960
960 = 9.6%2A10%5E2 in scientific notation
The amount received yearly by the city is
1.43%2A10%5E6%2A9.6%2A10%5E2+=+13.728%2A10%5E8
This is a valid answer, but it's not scientific notation yet
13.728%2A10%5E8+=+1.3728%2A10%5E9 answer