Question

2. The water level in a reservoir is now 52 meters. Which equation can be used to find the initial depth d if this is the water level after a 23% Increase

Answer 1

From the information given, we know that the water depth was initially d, then it increases by 25%, then we can express the equation:

final depth= d + 0.25*d

52=d + 0.25d, factoring d, we get:

52=d(1+0.25)

52=d(1.25)

From this equation, we can solve for d, like this:

52=1.25d

52/1.25=1.25d/1.25

52/1.25=d

d=52/1.25=41.6

Then, the depth of the water reservoir was initially 41.6 meters