Question

Harris has an ant farm. It currently has a population of 75 ants and is losing 15 ants per week. How many weeks will it take for the ant population to reach 0?

a) 3 weeks
b) 4 weeks
c) 5 weeks
d) 6 weeks

Answer 1

The ant population will take c) 5 weeks to reach 0.

Step-by-step explanation:

In this case, the ant population is decreasing by 15 ants per week, starting at 75 ants. We can set up the following equation to represent the problem:

75 - 15w = 0

Where w represents the number of weeks it takes for the population to reach 0. To solve for w, we can subtract 75 from both sides of the equation:

-15w = -75

Then, divide both sides of the equation by -15:

w = 5

Therefore, it will take 5 weeks for the ant population to reach 0.