#3

The number of girls at Sky High School is 60 greater than the number of boys. If there are 1250 students all together, how many girls are there?

Let x = the # of girls
Let y = the # of boys

x + y = 1250 (y = 1250 - x)
y + 60 = x (y= x - 60)

Input it into your graphing calculator and you have your solution (almost). Good window settings are:
xmin = -10
xmax = -1500
ymin = -10
ymax = 1000

The solution is (655, 595), so there are 655 girls in Sky High School.

Why Are There Rules in Croquet?

Please post solutions below as comments, or feel free to create a post indicating your number for your team...

RM