Answer:
The answer is a 40% ( 4 times 10 = 40)
Convert fraction (ratio) 4 / 10 Answer: 40%
Step-by-step explanation:
Answer:
Step 1 : <u>1000</u> * 2 * 9
Step 2 : <u>1000</u> * 18
Step 3 : <u>18000</u>
Step-by-step explanation:
<u>Step 3</u>
2000 * 9 = y ⇒ 18000
y = <u>18000</u>
<u>Step 1</u>
Solving for this, we have:
Let a be the unknown variable
a * 2 * 9 = 18000
18a = 18000
a = <u>1000</u>
Therefore, when we multiply 1000 by 2 & 9, we have 18000
<u>Step 2</u>
Solving for this, we have:
Let a be the unknown variable
a * 18 = 18000
18a = 18000
a = <u>1000 </u>
Therefore, when we multiply 1000 by 18, we have 18000
<u>We therefore see that the value of the unknown variables (a, y) is shown above & the product of all the steps (step 1 - 3) is 18000</u>
Answer:
okay
Step-by-step explanation:
if you want someone to help you you should probably put a question on here lol
Answer:
The answer is below
Step-by-step explanation:
Let x be the diameter of the semicircle. radius = x/2
The window is a combination of a rectangle and semicircle.
Width of window = diameter = x, let length of the window = y.
Perimeter of semicircle = πr = πx/2
Perimeter of window = x + y + y + πx/2
20 = x + 2y + πx/2
2y + x + πx/2 = 20
2y = 20 - x(1 - π/2)
y = 10 - x(1 - π/2)/2
Area of semicircle = (1/2)πr² = (1/2)π(x/2)²
Area of window = xy + (1/2)π(x/2)²
A = x(10 - x(1 - π/2)/2) + πx²/8
A = 10x - x² - πx²/4 + πx²/8
A = 10x - x² - πx²/8
The maximum area is at dA / dx = 0
dA / dx = 10 - 2x - 2πx/8
0 = 10 - 2x - πx / 4
2x + πx / 4 = 10
2.785x = 10
x = 3.59 feet
Maximum area = 10x - x² - πx²/8 = 10(3.59) - 3.59² - π(3.59²) / 8
Maximum area = 17.95 feet²
Answer:4x−24
Step-by-step explanation:
10x−3(2x+8)
10x-(3*2x+3*8)
10x-(6x+24)
10x-6x-24
4x-24
