Question

In the United States, 15,000,000 households use private wells for their water supply. Write this number in scientific notation.

need answer fast

Answer 1

1.5 x 10 to the 7th power

Explanation:

There are 7 digits between the decimal point in 15,000,000.0 and the first digit. So it can then be rewritten as 1.5 x 10 to the 7th power

Answer 2

1.5*10^7

Explanation:

That's same as saying standard form