document.write( "Question 182649: This is from a worksheet. Mathematics Essentials Grade 8 week 18 pg 52.
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document.write( "I think I've got the right answer, but I don't know how to put it into an equation. That is the part I need help with. Here is the problem:
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document.write( "There are fifty marbles in a sack: red, blue and green. There are ten more green than blue marbles in the sack. The probability of drawing a red or blue marble is one-half. Write and solve an equation to determine how many of each color marble is in the sack.
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document.write( "I figured the answer would be: blue 15, red 10 and green 25. Can you help me determine the equation? And is the answer right? \n" );
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Algebra.Com's Answer #137118 by Mathtut(3670) ![]() You can put this solution on YOUR website! I think I've got the right answer, but I don't know how to put it into an equation. That is the part I need help with. Here is the problem: \n" ); document.write( "There are fifty marbles in a sack: red, blue and green. There are ten more green than blue marbles in the sack. The probability of drawing a red or blue marble is one-half. Write and solve an equation to determine how many of each color marble is in the sack. \n" ); document.write( "I figured the answer would be: blue 15, red 10 and green 25. Can you help me determine the equation? \n" ); document.write( ": \n" ); document.write( "let the number of red,blue,and green marbles be r,b,and g consecutively \n" ); document.write( ": \n" ); document.write( "g=b+10..........eq 1 \n" ); document.write( "r+b=25..........eq 2---->r=25-b \n" ); document.write( "r+b+g=50........eq 3 \n" ); document.write( ": \n" ); document.write( "take r+b's value of 25 from eq 2 and g's value of b+10 from eq 1 and plug those values into eq 3 \n" ); document.write( ": \n" ); document.write( "25+b+10=50 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " |