SOLUTION: in a mixture of concrete, there are two lb of cement mix for each pound of gravel. if the mixture contains a total of 45 lb of thes two ingredients how many pounds of gravel are th
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Question 957927: in a mixture of concrete, there are two lb of cement mix for each pound of gravel. if the mixture contains a total of 45 lb of thes two ingredients how many pounds of gravel are there? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! G=amount of gravel; C=amount of cement=2G
G+C=45lb Substitute for C
G+2G=45lb
3G=45lb
G=15lb ANSWER: There are 15 pounds of gravel.
