Answer:
4 pounds will require 18 gallons of water at the same rate.
Step-by-step explanation:
According to the question, to make a salt water solution one dissolved two pounds of salt in nine gallons of water . At this same rate he/she wants to dissolve a particular pounds of salts to 18 gallons to get the same salt water solution. Mathematically,
if 2 pounds requires 9 gallons
y pounds requires 18 gallons
that is 2 pounds = 9 gallons
y pounds = 18 gallons
cross multiply
9y = 18 × 2
9y = 36
y = 36/9
y = 4
Therefore,
4 pounds will require 18 gallons at the same rate.
