Question

Lauren measured how much water her family used each day.

On Saturday they used 4% more water than on Thursday.
How much water did they use on Saturday?
Give your answer as a decimal in litres.
Day-
Thursday-820
Friday-840
Saturday-
Amount of water used (litres)

Answer 1

To calculate how much water was used on Saturday, 4% of Thursday's usage (which is 820 liters) is computed and added to Thursday's total, resulting in 852.8 liters used on Saturday.

Step-by-step explanation:

The student is asked to calculate how much water was used on Saturday if on that day the family used 4% more water than on Thursday. To find this amount, we first need to find 4% of Thursday's water usage and then add it to Thursday's total.

The water usage on Thursday was 820 liters. To calculate 4% of 820 liters, you use the following calculation:

1. Convert the percentage to a decimal: 4% = 0.04.
2. Multiply this decimal by the amount of water used on Thursday: 0.04 × 820 liters = 32.8 liters.
3. Finally, add this to the total water used on Thursday: 820 liters + 32.8 liters = 852.8 liters.

Therefore, the family used 852.8 liters of water on Saturday.