Answer:
Total Cost to tile = $273.28
Let x be the Width; then
3x - 9 = Length; hence
2(W + L) = Perimeter; therefore
6x = 2(x + 3x - 9)
6x = 2(4x - 9) = 8x - 18
6x - 8x = -18
-2x = -18
x = 9
Width = x = 9 ft
Length = 3x - 9 = 3 times 9, minus 9 = 27 - 9 = 18 ft
Area = W times L = 9 ft. times 18 ft. = 162 sq. ft.
Cost of Tile = $1.69 per sq. ft.
Total Cost = $1.69 times 162 = $273.28
To check:
Perimeter = 6(W) = 6x = 6 times 9 ft. = 54 ft.; also
Perimeter = 2(W + L) = 2(9 + 18) = 2(27) = 54 ft
Answer: 4 and 1/2
Step-by-step explanation: Ok so 12 is a whole number so to turn it into a fraction put it over one as in 12/1.
Then just multiply 12/1 x 3/8 which equals 36/8 But we aren't done!
now we must calculate how many times 8 goes into 36 without going over 36 which is 4. 8 times 4 is 32 so we have 4 leftover. Now writing this as a fraction is 4 4/8. 4 is the whole number and that 4 represents 8 going tinto 36 4 times like we just demonstrated. since 36-32 is 4 thats how you get a 4/8 as your fraction.
Then you just simplify your fraction and 4 4/8 turns into just 4 1/2.
I really hope I explained this well and you understand it! :)
Answer:
4
Step-by-step explanation:
x^2/ y^4
Let x=8 and y=2
8^2 / 2^4
PEMDAS says powers first
64 / 16
Divide next
4