Homework Help: Algebra

Posted by Janet on Thursday, April 28, 2011 at 6:00pm.

Use the five steps for problem solving to answer the following question. Show all work. Andrew is having an irrigation system installed in his yard. Company A charges $1250 plus $15 per sprinkler head. Company B charges $1200 plus $17 per sprinkler head. How many sprinkler heads will Andrew need to have to make Company A a better deal?

Algebra - PsyDAG, Friday, April 29, 2011 at 12:23pm
Let x = number of sprinkler heads.

1250 + 15x = 1200 + 17x

Solve for x, then increase by one.

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