Answer:
William need 0.48 liters of plant food for 12 weeks.
Step-by-step explanation:
Given:
William uses 40 milliliters of liquid plant food a week.
Now, to find the plant food William need for 12 weeks.
So, we use unitary method to solve:
If, William needs in 1 week plant food = 40 milliliters.
Thus, he needs in 12 weeks plant food = [tex]40\times 12=480\ milliliters.[/tex]
Now, by using conversion factor we convert milliliters into liters:
1000 milliliters = 1 liters.
480 milliliters = [tex]\frac{480}{1000}[/tex]
480 milliliters = [tex]0.48\ liters.[/tex]
Therefore, William need 0.48 liters of plant food for 12 weeks.
