A carpenter only makes 4-legged tables and 3-legged stools.At the end of one day she found that she had used 31 legs. How many combinations of tables and stools could she have made that day?

A carpenter only  makes 4-legged tables and 3-legged stools.At the end of one day she found that she had used 31 legs. How many combinations of tables and stools could she have made that day? Please explain how you found your answer
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1 Answer

4*7+3=31...7 tabels + 1 stool

4*4+3*5=16+15=31

4*1+3*9=4+27=31
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That's the answer I got---needed to be reassured. Thands
by Level 1 User (280 points)

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