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

x/10 = 30/4
Now just find x
0.75?
not even close. Watch your decimal points!
x/10 = 30/4
x = 300/4
not x = 3/4
it's 3/4? Oh! I see what it did.