Question

Decrease 100kg by 10%
pls explain​

Answer 1

90kg

Explanation:

Decreasing 10% of anything is just 1 - 0.1 times it. 1 - 0.1 is equal to 0.9, so decreasing 10% of anything is just multiplying it by 0.9. 100kg multiplied by 0.9 is 90 kg.

Answer 2

90k

Explanation:

10% of 100k leaves 90%

so 90% of 100k = 0.9(100k) = 90k