Pizzas cost $8 and sandwiches cost $2.50
Answer:
This question is incomplete
Step-by-step explanation:
This question is incomplete. However, there are mainly four types of graphical representations in mathematics; line graph, bar graph (and histogram), pie chart and cartesian graph. The most suitable representation for fluctuating data sets of the same variables on each of the y and x-axis is the line graph. Since download speed will fluctuate during the course of a download, the correct type of graph to be used here will be the line graph. And the exact type of line graph that will be used here is a simple line graph. A simple line graph is a type of line graph in which one line is drawn on the graph. A simple line graph is usually used to represent two variables (in this case data downloaded per time).
Answer:
First, I think the right formula is:
![V(t) = 100,000(1-\frac{t}{60} ),20\leq t\leq 60](https://tex.z-dn.net/?f=V%28t%29%20%3D%20100%2C000%281-%5Cfrac%7Bt%7D%7B60%7D%20%29%2C20%5Cleq%20t%5Cleq%2060)
A) We first derive the formula given above:
![V'(t)=-\frac{100000}{60}](https://tex.z-dn.net/?f=V%27%28t%29%3D-%5Cfrac%7B100000%7D%7B60%7D)
V'(t) represent the drain rate of the tank volume.
B) the units is: gallons/time
C) at V'(10) = 100000/60 = 1666.66 gallons/time.
because the formula V'(t) is constant so it doesn't depend of time.