Asupermarket sells 2 cans of ground coffee for $18.50. the cost of coffee varies directly with the number of cans. how much do 5 cans of coffee cost?

5 cans of coffee cost $46.25

To find how much 5 cans cost, you would have to find how much one can cost. To do this divide $18.50 by 2 because you have 2 cans.

$18.5/2 = $9.25

$9.25 is the unit price of one can of ground coffee.

Next multiply $9.25 by 5 because you want to find the cost of 5 cans and you will get:

$9.25 x 5 = $46.25

$46.25 = 5 cans of ground coffee

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50