Homework Help: math

Posted by Lisa on Tuesday, October 2, 2012 at 5:40pm.

Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.

math - Ms. Sue, Tuesday, October 2, 2012 at 5:44pm
Let x = the number of girls.

x + x + 9 = 25

2x = 25 - 9

2x = 16

x = 16/2

x = 8
math - Shelly, Tuesday, October 2, 2012 at 5:45pm
suppose the number of girls in class is x
then, the number of boys is x+9

x+(x+9)=25

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