the office manager of a small office ordered 120 packs of printer paper.based on average daily use, she knows that the paper will last about 40 days. what graph represents this situation? how many packs of printer paper should the manager expect to have after 10 days?
paper
[
150
[
100
[
50
___20___40___60 days
would it be 90 or 30 packs but then not sure which way graph goes upwards or downwards.
Can someone please try and maybe explain
To represent this situation with a graph, you can use a line graph. On the x-axis, you can display the number of days, and on the y-axis, you can indicate the number of packs of printer paper.
Start by plotting the values you have: 0 packs at the beginning and 120 packs at day 0.
Since the average daily usage is 120/40 = 3 packs per day, you can subtract 3 packs from the previous day's total to determine the number of packs remaining each day. So, for day 1, you'll have 120 - 3 = 117 packs remaining, for day 2, you'll have 117 - 3 = 114 packs remaining, and so on.
Continue this pattern until you reach day 40, and you'll have a downward sloping line on the graph indicating the decrease in the number of packs over time.
For the second part of your question, to find out how many packs of printer paper the manager should expect to have after 10 days, you can simply look at the corresponding point on the graph for day 10. Since it's a downward sloping line, you'll have fewer packs after 10 days compared to the starting point of 120 packs.
To find the exact value, locate day 10 on the x-axis and draw a vertical line up until it intersects with the line representing the number of packs. Read the y-coordinate (number of packs) at that point of intersection, and that will indicate how many packs the manager should expect to have after 10 days.