Posted by tierra on Monday, June 27, 2011 at 12:35pm.
if there are 30 students in the classroom,and the ratio for boys to girls is 4:6,how many boys and girls are in the class

geometry  Ms. Sue, Monday, June 27, 2011 at 12:38pm
Let x represent the boys in the classroom. Cross multiply and solve for x.
4/10 = x/30
10x = 120
x = 12