An hourglass is turned over with the top part filled with sand. after 3 minutes, there are 855 ml of sand in the top half. after 10 minutes, there are 750 ml of sand in the top half. which equation represents this situation

Step-by-step explanation:

Let x be the number of minutes and y be the quantity of sand in the hour glass.

After 3 minutes,

Quantity of sand in the top half=855 ml

After 10 minutes , quantity of sand in the top half=750 ml

We have to find the equation which represents this situation.

Now, we get two points (3,855) and (10,750)

Slope formula :

By using slope formula

Slope  =

The equation of  a line with slope m passing through the point

The equation of line with slope -15 and passing through the point (3,855) is give by

Hence, the equation represents this situation is given by

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square