Question

A ducks mass at birth is 0.05 kilograms. the duck gains approximately 0.042 kilograms each week. after how many weeks is the ducks mass 0.890 kilograms?

Answer 1

To find out after how many weeks the duck's mass reaches 0.890 kilograms, we can set up an equation and solve for the number of weeks.

Let's assume the number of weeks is represented by "w."

Given:

The initial mass of the duck (at birth) = 0.05 kilograms

Mass gained per week = 0.042 kilograms

The equation can be set up as follows:

0.05 + 0.042w = 0.890

To solve for "w," we need to isolate it on one side of the equation. First, let's subtract 0.05 from both sides:

0.042w = 0.890 - 0.05

0.042w = 0.84

Now, divide both sides of the equation by 0.042:

w = 0.84 / 0.042

w ≈ 20

Therefore, after approximately 20 weeks, the duck's mass will reach 0.890 kilograms.