Answer:
2 hours
Step-by-step explanation:
Given


Required
Determine the hours when the charges are the same
To do this, we simply equate both expressions:


Collect Like Terms


Divide both sides by -22

, and
. This gives a remainder of

, and
. This gives a new remainder of

, and
. This gives a new remainder of

and so there is no remainder.
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Quicker method: Use the polynomial remainder theorem, which says the remainder upon dividing a polynomial
by
is
. Here we have


wouldn't we need to know the width and length of the walls
Answer:
x+12>52 and x>40
Step-by-step explanation:
So x+12>52
Minus 12= x>40