x/10 = 30/4
Now just find x
In a class of 30 students, on average, 4 will be left-handed. If a class includes 10 "lefties", estimate how many students are in the class.
4 answers
0.75?
not even close. Watch your decimal points!
x/10 = 30/4
x = 300/4
not x = 3/4
x/10 = 30/4
x = 300/4
not x = 3/4
it's 3/4? Oh! I see what it did.