Final answer:
To divide 5 x 10^6 by 4 x 10^4, divide 5 by 4, subtract the exponents, and write the answer as an ordinary number.
Step-by-step explanation:
To work out
5 x 106 / 4 x 104,
- First, divide 5 by 4, which gives you 1.25
- Then, subtract the exponents of the powers of 10. 6 - 4 = 2.
- Finally, write the answer as an ordinary number, 1.25 x 102 = 125.
So, the answer is 125.