document.write( "Question 1104631: last saturday she bought pants and shirts for her new video. each shirt costs $125 and each pants cost $225. she came out with 26 items and spent exactly $4950. how many pants and shirts did Rihianna buy?
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document.write( " need system of equations \n" );
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Algebra.Com's Answer #719327 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "I hope the way you are being taught says that, before you can have a system of equations, you need some variables to use in those equations. \n" ); document.write( "Making precise definitions of your variables is by far the most important part of setting up any problem. \n" ); document.write( "In this problem, you are asked to find how many shirts and how many pants she bought -- so the obvious variables are those numbers. So \n" ); document.write( "let x = number of shirts \n" ); document.write( "let y = number of pants \n" ); document.write( "With those definitions on your paper in front of you, it should be easy to write the system of equations you need. \n" ); document.write( "(1) The total number of shirts and pants is 26: \n" ); document.write( "(2) The total cost of the shirts (x of them, at $125 each) and pants (y of them, at $225 each) is $4950: (you get to write this equation....) \n" ); document.write( "Then solve the pair of equations by your favorite method.... \n" ); document.write( " |