Posted by Aly on Thursday, October 21, 2010 at 9:42pm.
A carpenter used 3 3/16 pounds of nails for a job. After the job was over, the remaining ails weighed 1 1/16 pounds. How many pounds of nails di the carpenter have at the beginning of the job? PLEASE HELP!

math  Ms. Sue, Thursday, October 21, 2010 at 9:44pm
3 3/16 + 1 1/16 = ?

math  Aly, Thursday, October 21, 2010 at 9:55pm
could I write that as x  3 3/16 = 1 1/16 and x = 4 1/4?

math  Ms. Sue, Thursday, October 21, 2010 at 10:00pm
I don't see why. You can't have two different values for x in this problem.
This is a simple addition problem.
The carpenter uses 3 3/16 pounds of nails.
He has 1 1/16 pounds left.
To find how many pounds he had at the beginning, add the two.
A similar problem would be if you spent $20 and had $5 left. How much money did you start with? Obviously you started with $25.
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