60c+80=287
Let c stand for the cost of one square foot. with 60 square feet you get 60c. then add 80 for the installation fee.
Step-by-step explanation:
x² + y² − 8x + 10y − 8 = 0
Rearrange:
x² − 8x + y² + 10y = 8
To complete the square, take half of the x and y coefficients, square it, then add the result to both sides.
(-8/2)² = 16
(10/2)² = 25
x² − 8x + 16 + y² + 10y + 25 = 8 + 16 + 25
x² − 8x + 16 + y² + 10y + 25 = 49
Factor the squares:
(x − 4)² + (y + 5)² = 49
The center is (4, -5) and the radius is 7.
Maybe 3(6x+15)
not sure what you're looking for
Answer:
The width of the similar rug is 3 ft
Step-by-step explanation:
Calculate the percentage between the lengths:
3/9 = 1/3 (percentage)
The percentage is fixed for the widths as well which means 1/x = 1/3
x=3
