Posted by viri on .
mrs. cooper's class has 11 more girls than boys. there are 35 students in all. how many girls are there?

math  sum and difference 
MathMate,
Sum and difference problems can be readily solved without algebra by the following:
bigger number = (sum+difference)/2
smaller number = (sum  difference)/2
Example, since there are more girls than boys, so
number of girls = (35+11)/2 = 23
number of boys = (3511)/2 = 12 
math 
Lyman Lacro,
mrs cooper has 35 students in her class. she has 11 more girls than boys. How many girls are in her class.