SOLUTION: Lex spent $8.40 for several pencils costing 20 cents each and some notebooks costing $1.20 each. He bought 7 more pencils than notebooks. how many notebooks did he buy?

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Lex spent $8.40 for several pencils costing 20 cents each and some notebooks costing $1.20 each. He bought 7 more pencils than notebooks. how many notebooks did he buy?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 534368: Lex spent $8.40 for several pencils costing 20 cents each and some notebooks costing $1.20 each. He bought 7 more pencils than notebooks. how many notebooks did he buy?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the number of notebooks. Then is the number of pencils. is the value of notebooks in cents and is the value of the pencils in cents, so:



John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism