Posted by **thomas ** on Friday, May 2, 2014 at 4:06pm.

On the average 800 pounds of valuable oxides are obtained from every 2 tons of ore mined.What is the ratio of valuable oxides to other material in 100 tons of ore ?

a. 1:400

b. 1:5

c. 1:4

d. 2:1

e. 4:1

please answer and explain

- math -
**Ms. Sue**, Friday, May 2, 2014 at 4:33pm
800/2 = x/100

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