Question

word problem

Answer 1

You and two friends, Ali and Oliver, go blueberry picking. it takes you an average of 30 minutes to pick one pound of blueberries. (R1=1/30 lb of blueberries per minute.) Ali can pick one pound of blueberries in x minutes. Oliver can pick one pound of blueberries on (x+4) minutes.
a. Write an expression for Ali's rate R2 and Oliver's rate R3 for picking blueberries.
b. Write a single expression R for the combined rate of blueberries picked per minute for all three friends.
c. Evaluate the expression in part (c) if Ali take 25 mins to pick one pound of blue berries. how many pounds of blueberries per hour does this represent? Explain your reasoning.