9514 1404 393
Answer:
(p, h) = (32, 11)
Explanation:
We can write an expression for p using the first equation, then substitute that into the second equation.
4.5(43-h) +12h = 276 . . . . substitute for p
193.5 +7.5h = 276 . . . . . . eliminate parentheses
7.5h = 82.5 . . . . . . . . . . . . subtract 193.5
h = 82.5/7.5 = 11 . . . . . . . . divide by the coefficient of h
p = 43 -11 = 32
The solution is (p, h) = (32, 11).