Question

The price of a barrel of oil changes every weekday. The changes in price for a week are shown below. Day Price Change (Dollars) +0.58 Monday Tuesday -1.02 Wednesday -0.93 Thursday +2.39 Friday -0.30 Calculate the total price change, in dollars, for the week. Explain how you determined your answer.​

Answer 1

The total weekly price change for oil is calculated by summing the daily price changes; in this case, the total price change for the week is $0.72.

Step-by-step explanation:

To calculate the total price change for the oil prices over the course of a week, we need to sum up each day's price change. Here is the step-by-step addition:

1. Monday: +$0.58
2. Tuesday: -$1.02
3. Wednesday: -$0.93
4. Thursday: +$2.39
5. Friday: -$0.30

Adding these values together, we have (+$0.58) + (-$1.02) + (-$0.93) + (+$2.39) + (-$0.30), which equals $0.72. Therefore, the total price change for the week is $0.72.

Answer 2

+0.72

Step-by-step explanation:

0 + 0.58 - 1.02 - 0.93 + 2.39 - 0.30 = 0.72

Starting at 0 because we are measuring the change, not the price