document.write( "Question 53809: I bought 2 donuts and 3 lattes yesterday for $6.15, today I bought 3donuts and 4 lattes for $8.35, how much are donuts and how much are lattes? I got latte would be 1.75 donuts .45 am i right? \n" ); document.write( "
Algebra.Com's Answer #36069 by checkley71(8403) ![]() You can put this solution on YOUR website! 2D+3L=6.15 & 3D+4L=8.35 MULTIPLYING EQ #1 BY 3 & MULT EQ #2 BY -2 WE GET\r \n" ); document.write( "\n" ); document.write( "6D+9L=18.45 \n" ); document.write( "-6D-8L=-16.70 NOW ADDING THESE TWO EQUATIONS WE GET \n" ); document.write( "------------------------ \n" ); document.write( "0D+L=1.75 OR THE PRICE OF A LATTE IS 1.75 & THE PRICE OF THE DONUT IS\r \n" ); document.write( "\n" ); document.write( "2D+3*1.75=6.15 OR 2D=6.15-5.25 OR 2D=.90 OR D=.90/2 OR D=.45 THE PRICE OF A DONUT\r \n" ); document.write( "\n" ); document.write( "PROOF 3*.45+4*1.75=8.35 OR 1.35+7.00=8.35 OR 8.35=8.35 \n" ); document.write( " |