-4 + x = 6 Add 4 to both sides (to cancle out the -4)
x = 10
What are the solutions to the equation (x – 6)(x + 8) = 0?
2 answers:
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-4 + x = 6 Add 4 to both sides (to cancle out the -4)
x = 10
Given:
Volume of a cubed room = 8000 cubic ft
Cost of floor hardwood = $10 per square foot
To find:
The total cost of floor hardwood.
Solution:
Let the each side of cubed room be x ft.
Volume of a cube is cube of its side.
Volume of a cubed room is 8000 cubic ft. So,
Taking cube root on both sides.
So, length of each of room is 20 ft.
Area of base = length × breadth
So, area of base of room is
It means, 400 sq ft hardwood is required for the floor.
Cost of floor hardwood is $10 per square foot. So, total cost of hardwood floor is
The hardwood floors will cost $4000.