document.write( "Question 1015545: A dealer has some hard candy worth $2 a pound and some worth $3 a pound. he wishes to make a mixture of 80 pounds that he can sell for $2.20 a pound. how many pounds of each kind should he use? \n" ); document.write( "
Algebra.Com's Answer #631908 by justasking(11)![]() ![]() You can put this solution on YOUR website! I love these problems.\r \n" ); document.write( "\n" ); document.write( "Make a picture of buckets. Under one, put \"x\", and in it put $2. \n" ); document.write( "The second one should have a \"80-x\" under it (you can't have more than 80 pounds of hard candy), and in it write $3.\r \n" ); document.write( "\n" ); document.write( "The third should have an \"80\" underneath it, and a $2.20 inside the bucket. Put a + between the first two, and a = between the the second and third buckets.\r \n" ); document.write( "\n" ); document.write( "Now you can make your equation.\r \n" ); document.write( "\n" ); document.write( "x*2 + 3(80-x)=80*2.20\r \n" ); document.write( "\n" ); document.write( "2x + 240 - 3x = 176\r \n" ); document.write( "\n" ); document.write( "2x + 240 = 176 + 3x\r \n" ); document.write( "\n" ); document.write( "240 = 176 + x\r \n" ); document.write( "\n" ); document.write( "64 = x\r \n" ); document.write( "\n" ); document.write( "You need 64 pounds of the $2 candy.\r \n" ); document.write( "\n" ); document.write( "80 - 64 = 16\r \n" ); document.write( "\n" ); document.write( "You need 16 pounds of the $3 candy \n" ); document.write( " |