William bough a 0.5-liter bottle of liquid plant foodHe uses 40 milliliters a weekHow much plant food does William need for 12 weeks?

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 =

Now, by using conversion factor we convert milliliters into liters:

1000 milliliters = 1 liters.

480 milliliters =

480 milliliters =

Therefore, William need 0.48 liters of plant food for 12 weeks.

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