document.write( "Question 414225: #1 The deli charges $3.80 for a breakfast of 3 eggs & 4 bacon strips. The charge is $2.75 for 2 eggs & 3 bacon strips. Find the cost of each egg and the cost of each bacon strip?
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document.write( "(Please help me I don't even no where to begin with these I freeze up.)\r
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document.write( "#2 If 3/4 is added to three times a number, the result is 1/2 subtracted from twice the number. Find the number?\r
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document.write( "#3 Carol spent $32.25 to take her daughter's birthday party guest to the movies. Adult tickets cost $5.75 and children tickets cost $3.00. If 8 people were at the party.how many of each ticket were bought?\r
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document.write( "#4 A chemist working on a new project needs 12 liters of a 50% acid solution. The stockroom only has 40% and 70% solutions. How much of each solution should be mixed together to form 12 liters of a 50% solution?\r
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document.write( "# 5 Solve: 2x-(3x-2)+5=17 \n" );
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Algebra.Com's Answer #290547 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 1 The deli charges $3.80 for a breakfast of 3 eggs & 4 bacon strips. The charge is $2.75 for 2 eggs & 3 bacon strips. Find the cost of each egg and the cost of each bacon strip? \n" ); document.write( "(Please help me I don't even no where to begin with these I freeze up.)\r \n" ); document.write( "\n" ); document.write( "let egg = $x \n" ); document.write( "bacon = $y \n" ); document.write( "3x+4y=3.80...............1 \n" ); document.write( "2x+3y=2.75...............2\r \n" ); document.write( "\n" ); document.write( "3 x + 4 y = 3.8 .............1 \n" ); document.write( "2 x + 3 y = 2.75 .............2 \n" ); document.write( " \n" ); document.write( "multiply (1)by -2 \n" ); document.write( "Multiply (2) by 3 \n" ); document.write( "-6x-2y =-7.6 \n" ); document.write( "6x+3y=8.25 \n" ); document.write( " \n" ); document.write( "Add the two equations \n" ); document.write( " \n" ); document.write( "y=0.65 \n" ); document.write( " \n" ); document.write( "Plug value of y in \n" ); document.write( "3 x + 4 y = 3.8 \n" ); document.write( "3 x + 2.6 = 3.8 \n" ); document.write( "3 x + = 1.2 \n" ); document.write( "/ 3 \n" ); document.write( "x= 0.4 \r \n" ); document.write( "\n" ); document.write( "eggs 40 cents, bacon 65 cents\r \n" ); document.write( "\n" ); document.write( "#2 If 3/4 is added to three times a number, the result is 1/2 subtracted from twice the number. Find the number? \n" ); document.write( "Let x be the number\r \n" ); document.write( "\n" ); document.write( "3x+3/4 =2x - 1/2 \n" ); document.write( "3x-2x=-1/2 -3/4 \n" ); document.write( "x=-5/4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "#3 Carol spent $32.25 to take her daughter's birthday party guest to the movies. Adult tickets cost $5.75 and children tickets cost $3.00. If 8 people were at the party.how many of each ticket were bought?\r \n" ); document.write( "\n" ); document.write( "adults x \n" ); document.write( "children y\r \n" ); document.write( "\n" ); document.write( "x+y =8..............1 \n" ); document.write( "5.75x+3y= 32.25.....2\r \n" ); document.write( "\n" ); document.write( "1 x + 1 y = 8 .............1 \n" ); document.write( "5.75 x + 3 y = 32.25 .............2 \n" ); document.write( " \n" ); document.write( "multiply (1)by -3 \n" ); document.write( "Multiply (2) by 1 \n" ); document.write( "-3x-3y =-24 \n" ); document.write( "5.75x+3y =32.25 \n" ); document.write( " \n" ); document.write( "Add the two equations \n" ); document.write( " \n" ); document.write( "2.75x=8.25 \n" ); document.write( " \n" ); document.write( "/2.75 \n" ); document.write( " \n" ); document.write( "x=3 \n" ); document.write( " \n" ); document.write( "plug value of x in (1) \n" ); document.write( " \n" ); document.write( "1x+1y=8 \n" ); document.write( "3+1y=8 \n" ); document.write( "y=8-3 \n" ); document.write( "y=5 \n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( "#4 A chemist working on a new project needs 12 liters of a 50% acid solution. The stockroom only has 40% and 70% solutions. How much of each solution should be mixed together to form 12 liters of a 50% solution?\r \n" ); document.write( "\n" ); document.write( "percent ---------------- quantity \n" ); document.write( "40 ---------------- x \n" ); document.write( "70 ---------------- 12-x \n" ); document.write( "50.00% ---------------- 12\r \n" ); document.write( "\n" ); document.write( "40x+70(12-x)=50* 12 \n" ); document.write( "40x+840 -70x=600 \n" ); document.write( "40x-70x =600-840 \n" ); document.write( "-30x=-240 \n" ); document.write( "/-30 \n" ); document.write( "x=8liters 40% \n" ); document.write( " # 5 Solve: 2x-(3x-2)+5=17 \n" ); document.write( "2x-3x+2+5=17 \n" ); document.write( "-x+7=17 \n" ); document.write( "-x=10 \n" ); document.write( "x=-10\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |