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Huda monitored the activity of her fuel stock for the past five days. She records the following activity: Monday up 2 points, Tuesday down 5 points, Wednesday down 1 point, Thursday up 4 points, and Friday up 1 point. Write and evaluate an expression to determine the average change in her fuel stock's value for this 5-day period.

1 Answer

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Final answer:

To find the average change in Huda's fuel stock's value over the 5-day period, we calculate the total change by summing the daily changes and then divide by 5, revealing an average of 0.2 points per day.

Step-by-step explanation:

To determine the average change in Huda's fuel stock's value for the 5-day period, we first need to calculate the total change in the stock value over these days. We can use the data provided: Monday up 2 points, Tuesday down 5 points, Wednesday down 1 point, Thursday up 4 points, and Friday up 1 point. The total change can be calculated by summing these daily changes.

The calculation would look like this:

(+2) + (-5) + (-1) + (+4) + (+1) = 1

The total change over the five days is 1 point. To find the average daily change, we divide this total by the number of days, which is 5.

Average daily change = Total change / Number of days

Average daily change = 1 / 5

Average daily change = 0.2

Therefore, the average change in Huda's fuel stock's value for the 5-day period is 0.2 points per day.

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