find c from the formula h=abc when h=40, a=2, b=5

40 = 2 * 5 * c

40 = 10c
40/10 = c
4 = c

h = abc

40 = 2 * 5 * c
40 = 10c
4 = c or
c = 4.

To find the value of c in the formula h = abc, where h = 40, a = 2, and b = 5, we can rearrange the formula to solve for c.

The formula can be rewritten as c = h / (ab).

Now, substitute the given values:

c = 40 / (2 * 5)

c = 40 / 10

c = 4

So, the value of c is 4.