document.write( "Question 1163629: There are 152 students in 5th grade. 1/11 of the boys and 5 girls join a science club. In the rest of the students, boys and girls are equal. How many boys vs girls are in 5th grade? \n" ); document.write( "
Algebra.Com's Answer #787772 by Theo(13342)\"\" \"About 
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x = number of boys
\n" ); document.write( "y = number of girls
\n" ); document.write( "x + y = 152
\n" ); document.write( "1/11 * x + 5 = s = number of students in the science club.
\n" ); document.write( "the rest of the boys and girls are equal in number each.
\n" ); document.write( "this means that 10/11 * x = y - 5
\n" ); document.write( "this is because x - 1/11 * x = 10/11 * x are the number of boys remaining and y - 5 are the number of girls remaining.
\n" ); document.write( "since they are equal, 10/11 * x = y - 5
\n" ); document.write( "solve for y to get:
\n" ); document.write( "y = 10/11 * x + 5
\n" ); document.write( "since x + y = 152, replace y with 10/11 * x + 5 to get:
\n" ); document.write( "x + 10/11 * x + 5 = 152
\n" ); document.write( "combine like terms to get:
\n" ); document.write( "21/11 * x + 5 = 152
\n" ); document.write( "subtract 5 from both sides of the equation to get:
\n" ); document.write( "21/11 * x = 147
\n" ); document.write( "multiply both sides of the equation by 11/21 to get:
\n" ); document.write( "x = 147 * 11 / 21 = 77
\n" ); document.write( "since x + y = 152, then y must be equal to 75 because 77 + 75 = 152.
\n" ); document.write( "you have:
\n" ); document.write( "x + y = 152 becomes 77 + 75 = 152 which is true
\n" ); document.write( "1/11 of the boys = 1/11 * 77 = 7
\n" ); document.write( "7 of the boys are in the science club.
\n" ); document.write( "the remaining number of boys is 77 - 7 = 70 who are not in the science club.
\n" ); document.write( "5 of the girls are in the science club.
\n" ); document.write( "the remaining number of girls is 75 - 5 = 70 who are not in the science club.
\n" ); document.write( "the number of boys and girls who are not in the science club are the same.
\n" ); document.write( "problem is solved.
\n" ); document.write( "solution is there are 77 boys and 75 girls in the 5th grade for a total of 152 students.
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