Final answer:
To find out how many liters are required to spray 4 lawns, we double the amount needed for 2 lawns, resulting in 5 liters. The correct answer is A) 5 liters.
Step-by-step explanation:
The question asks how many liters of weed killer would be needed to spray 4 lawns given that 2 2/4 liters can spray 2 lawns. First, we simplify the mixed number 2 2/4 to a simple fraction or a decimal to make the calculation easier. We know that 2 2/4 is equivalent to 2 + 1/2 which simplifies to 2.5 liters. Since 2.5 liters can spray 2 lawns, we set up a proportion to determine how much would be required to spray 4 lawns:
- 2.5 liters / 2 lawns = x liters / 4 lawns
By cross-multiplication, we get:
- 2.5 liters * 4 lawns = 2 lawns * x liters
This simplifies to:
Divide both sides by 2:
Therefore, it would take 5 liters to spray 4 lawns. The correct answer is A) 5 liters.