SOLUTION: A man bought a total of 80 feet of materials which are chain links and rope. A chain link cost $2 per foot, and the rope cost $1.50 per foot, and a total of $135 was spent. How muc

Question 1043196: A man bought a total of 80 feet of materials which are chain links and rope. A chain link cost $2 per foot, and the rope cost $1.50 per foot, and a total of $135 was spent. How much of each did he buy? So, my question here is how do I start the problem and set up an equation to solve it? What's the algebraic analysis and solution? I need your help, please.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Name your variables.
-feet of chain links purchased
-feet of rope purchased
Convert the words to algebraic equations,
Total of 80 feet,
1.
Total of $135,
2.
Now you have a system of 2 equations with 2 unknowns.
There are many methods to solve this system.
You can use substitution.
From eq. 1,

Now substitute this into eq. 2,

Now use eq. 1 to solve for .

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