It took 16 seconds for a mercury thermometer to rise from negative degrees to 100 degrees when it was taken from a freezer and placed in boiling water. show that somewhere along the way the mercury was rising at the rate of 6.5degreesc/second.

Step-by-step explanation:

Assuming the complete question :"It took 16 seconds for a mercury thermometer to rise from -4C degrees to 100C degrees when it was taken from a freezer and placed in boiling water. Show that somewhere along the way the mercury was rising at the rate of 6.5degreesC/second. "

For this case we can find the rate of change like this:

For this cas we have the following data:

represent the initial temperature

represent the final temperature

we assume that we star at 0 seconds

represent the final time

So we can replace the info and we got:

And that satisfy the proof.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i