Awatering can contains 8 quarts of water.

Awatering can contains 8 quarts of water. Theo uses 6 cups to water his houseplants. How many cups of water are left in the watering can?

The Correct Answer and Explanation is:

To solve this problem, we need to convert quarts to cups and then subtract the amount Theo used. Here’s how:

1. Convert quarts to cups:
   • We know that 1 quart is equal to 4 cups.
   • Since the watering can contains 8 quarts of water, we can calculate the total number of cups as follows:
   8 quarts×4 cups/quart=32 cups8 \, \text{quarts} \times 4 \, \text{cups/quart} = 32 \, \text{cups}8quarts×4cups/quart=32cups So, the watering can starts with 32 cups of water.
2. Subtract the amount Theo used:
   • Theo uses 6 cups of water to water his houseplants.
   • To find out how many cups are left, subtract 6 from 32:
   32 cups−6 cups=26 cups32 \, \text{cups} – 6 \, \text{cups} = 26 \, \text{cups}32cups−6cups=26cups

Thus, after watering his plants, 26 cups of water are left in the watering can.

Explanation:

This problem involves basic unit conversion and simple subtraction. The key step is converting the total amount of water in the watering can from quarts to cups, which is a straightforward multiplication (since 1 quart equals 4 cups). After that, subtracting the number of cups Theo used from the total gives the remaining amount of water.