A newspaper reports the following changes in the temperature of a city over 4 days:
3.24 degrees Celsius, negative 3 over 8 degrees Celsius, −0.15 degrees Celsius, 7 over 9 degrees Celsius
Write an expression to show the average daily change in the temperature of the city.
(P.S, please write it with the answer rounded to the nearest hundredth)
To find the average daily change in temperature, we need to divide the sum of the temperature changes by the number of days.
Let's represent the temperature changes as follows:
Day 1: 3.24 degrees Celsius
Day 2: -3/8 degrees Celsius
Day 3: -0.15 degrees Celsius
Day 4: 7/9 degrees Celsius
We can write the expression as:
(3.24 + (-3/8) + (-0.15) + (7/9)) / 4.
Calculating this expression:
(3.24 + (-0.375) + (-0.15) + (0.778)) / 4 ≈ 3.49375 / 4 ≈ 0.87344.
Therefore, the rounded expression for the average daily change in temperature is approximately 0.87 degrees Celsius.