So that answer is in this picture that I wrote on my white board, count all of the hundreds I drew on the board.
To solve you divide 68 by 16 and that gives you the price per square foot so that is $4.25, Now times 12 by that and the answer will be $51 dollars.
length = 1/2 w+9
perimeter= 60 =2(l+w)
substitute in for length
60 = 2(1/2 w +9 +w)
60 = 2 (3/2 w +9)
distribute
60 = 3w + 18
subtract 18 from each side
42 = 3w
divide by 3 on each side
14 = w
length = 1/2 w + 9
length = 1/2 (14) +9
7 + 9
16cm
Answer:6minutes
Step-by-step explanation:
3 hours =180min
180min divided by 30 windows is 6
