Question

Express this number in scientific notation:19 hundred-thousandths

Answer 1

Recall that 1 hundred-thousandth in scientific notation is:

$1\times10^{-5}.$

Now, 19 hundred-thousandths is 10 one hundred-thousandths added to 9 one hundred-thousandths which is:

$10\times10^{-5}+9\times10^{-5}\text{.}$

Simplifying the above sum we get:

$1.9\times10^{-4}\text{.}$

Answer:

$1.9\times10^{-4}\text{.}$