Answer: width = 5 units
Step-by-step explanation:
Let L represent the length of the rectangle.
The width of a rectangle is the length minus 2 units. It means that the width of the rectangle is (L - 2) units.
The formula for determining the area of a rectangle is expressed as
Area = length × width
The area of the rectangle is 35 units. It means that
L(L - 2) = 35
L² - 2L = 35
L² - 2L - 35 = 0
L² + 5L - 7L - 35 = 0
L(L + 5) - 7(L + 5) = 0
L - 7 = 0 or L + 5 = 0
L = 7 or L = - 5
Since the length cannot be negative, then
L = 7 units
Width = 7 - 2 = 5 units
Answer:
24 hours
Step-by-step explanation:
If 12 workers take 10 hours to build a wall, assuming they build at the same rate, it would take one worker 120 hours to build a wall.
By this logic, it would take 120/5 or 24 hours for 5 workers to build a wall
Answer:
<u>8x+12</u>
2
Step-by-step explanation:
(Divide the entire Angle A by 2)
Answer: 7.29 or 7 1/4 or 29/4 (they're all equal, just rewritten)
Step-by-step explanation:
the angles are equal, so we set the equations to each other and then solve. here's my work:
12k - 9 = 8k + 20
12k (- 8k) - 9 = 8k ( - 8k) + 20
4k - 9 = 20
4k -9 ( + 9) = 20 ( + 9)
4k = 29
k = 7.29 or 7 1/4 or 29/4
