The weight of 10,000 identical samples of a substance is 10 pounds. what is the weight of 100 samples?

Okay. So, the weight of 10,000 samples is 1 pound. To find the weight of each sample, we can do 10/10,000, which would give us 0.001. Each sample weighs 0.001 pound. We can multiply that times 100 to find the weight of 100 samples. 0.001 * 100 = 0.1. The weight of 100 samples is 0.1 pound.

16/5 × 9/2

(16 × 9) / (5 × 2)

 144/10

 72/5

= 14 2/5