Question

Write an expression, in terms of x, for the number of minutes the small pump takes to fill the empty tank if the small pump can add oil at a rate of x liters per minute.

A) x + 20
B) 2500/x
C) 2500/(x + 20)
D) 2500x

Answer 1

The expression for the time taken by the pump to fill the tank is 2500 divided by the rate of the pump x, represented as 2500/x.

Step-by-step explanation:

The expression, in terms of x, for the number of minutes the small pump takes to fill the empty tank if the small pump can add oil at a rate of x liters per minute is 2500/x. To find the time, you divide the total volume of the tank by the rate at which the pump adds oil. If x is the rate in liters per minute, and the tank's volume is 2500 liters, then the time in minutes is given by the total volume divided by the rate, hence the correct expression is 2500/x.