(2.5 × 10^7) ÷ (5 × 10^4) simplified equation

0.5 x 10^3

Step-by-step explanation:

(2.5 x 10^7) /(5 x 10^4)

Divide 2.5 by 5 and subtract the powers. We are subtracting the powers because we are dividing. If we were multiplying, we’d add the powers .

This can be written as

2.5/5 x 10^7-4

0.5 x 10^3

First one: Since we know that its 12, we just need to change it into a percentage. 12 out of 30 would be 40%. So the answer is 40%

Second one: 60 - 30 = 30. We know 30 is half of 60 so 50%. The answer is 50%

Third one: 16 - 4 = 12. 12 of 16 is 75%. The answer is 75%.