SOLUTION: small ones weight 3 ldb,big ones weight is 4 lb. the number of small ones is 3 more than twice the number of big ones. all together,they weight 79 lb.how many small ones are there?
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Question 1040192: small ones weight 3 ldb,big ones weight is 4 lb. the number of small ones is 3 more than twice the number of big ones. all together,they weight 79 lb.how many small ones are there?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let n equal big ones. Then small ones are 2n+3. So:
4n+3(2n+3)=79
4n+6n=70
n=7
There are 7 big ones and 17 small ones ☺☺☺
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