If a metal ore contains 21.9% pure metal, how

many pounds of pure metal can be obtained
from 68 pounds of metal ore?
Answer in units of pounds

68 x 0.219 = ?

To find out how many pounds of pure metal can be obtained from 68 pounds of metal ore, you need to calculate the amount of pure metal present in the ore.

Given that the metal ore contains 21.9% pure metal, this means that for every 100 pounds of metal ore, there are 21.9 pounds of pure metal.

To calculate the pounds of pure metal in 68 pounds of metal ore, you can set up a proportion:

(68 pounds of ore) / (100 pounds of ore) = (x pounds of pure metal) / (21.9 pounds of pure metal)

Now, you can solve the proportion by cross-multiplying:

68 * 21.9 = 100x

1489.2 = 100x

x = 1489.2 / 100

x = 14.892

Therefore, you can obtain approximately 14.892 pounds of pure metal from 68 pounds of metal ore.