# How do you simplify and write 8100 times 7.5times 10 ^5 in scientific notation?

Jul 9, 2016

$6.075 \cdot {10}^{9}$

#### Explanation:

you can write $8100 = 8.1 \cdot {10}^{3}$

and multiply 7.5 by 8.1 obtaining $60.75 = 6.075 \cdot 10$

so

$8100 \cdot 7.5 \cdot {10}^{5} = 8.1 \cdot {10}^{3} \cdot 7.5 \cdot {10}^{5}$

$= 6.075 \cdot 10 \cdot {10}^{8} = 6.075 \cdot {10}^{9}$