Question

Solve number 15? , Find the equation for the indicted variable, the answer will look something like this “h=_____”. So it is “h” equals something

Answer 1

`h = (T - r)/(n)\\\\\text{Hourly rate } = \$45\;\;\text{if T = 200, r = 20 and n= 4}`

Explanation:

We have from #14 that
T = r + nh

where T = amount charged, n = hours worked, r = fixed rate and h = hourly rate

Subtract r from both sides:
T - r = r + nh - r

The r terms on RHS of the equation cancel out
T - r = nh

Divide both sides by n:
(T - r)/n = h

Or we can write it as
h = (T - r)/n

If r = 20, , T = 200 and n =4 we get by substitution

h = (200-20)/4

h = 180/4

h = 45

So hourly rate = $45