Question

What is the value of n

Answer 1

Answer:

1.5x10^-18

Step-by-step explanation:

8.4x10^9 / x = 5.6x10^27

You could make a proportion:

x(5.6 x 10^27)= 8.4x10^9

divide both sides by 5.6x10^27

x=1.5x10^-18

Answer 2

Answer:

$1.5*10^{-18}$

Step-by-step explanation:

The question is in the format $\frac{8.4*10^9}{n}=5.6*10^{27}$

First multiply both sides by n and then divide both sides by the number in scientific notation on the right.

$\frac{8.4*10^9}{5.6*10^{27}}=n$

We can think of this problem as $\frac{8.4}{5.6}*\frac{10^{9}}{10^{27}}=\frac{8.4}{5.6}*10^9*10^{-27}$

When dividing like-terms, we subtract their powers (or we can get the multiplicative inverse and add the powers).

We end up with $1.5*10^{-18}$