SOLUTION: Mr. Pollack's biology class observed the growth of pea plants. If 5 pea plants grew to 30cm and 15 pea plants grew to 50cm, what was the overall average height of the pea plants?

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Mr. Pollack's biology class observed the growth of pea plants. If 5 pea plants grew to 30cm and 15 pea plants grew to 50cm, what was the overall average height of the pea plants?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1078750: Mr. Pollack's biology class observed the growth of pea plants. If 5 pea plants grew to 30cm and 15 pea plants grew to 50cm, what was the overall average height of the pea plants?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Do this by weighted average
5*30=150
15*50=750
20 plants grew to a total of 900 cm
average height is 900/20=45 cm