Answer:
5 1/3
Step-by-step explanation:
number = n
second number = s
6n + 3s = 27
2n + 1 = s
6n + 3(2n + 1) = 27
6n + 6n + 1 = 27
12n = 26
n = 26/12
n = 2 1/6
2(2 1/6) + 1 = s
4 1/3 + 1 = s
5 1/3 = s
<h2>Given :-</h2>
- Patrick had twice money at first
- Susan recived and Patrick spent some money
- The amount Susan received was 3 times as much as the amount Patrick spent
- At last they have same amount
<h3>To Find :-</h3>
<h2>Solution :-</h2>
At first Patrick had twice of Susan.
Hence,
He have 2 × 120 = $240
Let the money received be x
- x + 120 = 3(240 - x)
- x + 120 = 720 - 3x
- 3x + x = 720 - 120
- 4x = 720 - 120
- 4x = 600
- x = 600/4
- x = 150
132-cm is her heigth. I figured this out by dividing 264 by 2 and I got 132-cm
The first thing we should do is write the functions.
For the area we have:
A = w * h = 20000 feet ^ 2
The price is:
Cost = (4 * 2 * h + 2 * 2 * w)
Substitute for h ::
C (w) = (4 * 2 * (20,000 / w) + 2 * 2w)
Rewrite we have:
C (w) = 160,000 / w + 4w
Take the derivative:
C '(w) = 160000 (-1 / w ^ 2) + 4
We equal zero and clear w:
0 = 160000 (-1 / w ^ 2) + 4
160000 / w ^ 2 = 4
w ^ 2 = 40000
w = 200 (approximately)
width = 200 ft; so cost is 2 * ($ 4) 200 = $ 1600
height = 20000/200 = 100 ft; so cost is 2 ($ 2) 100 = $ 400
Total cost = $ 2000
Answer:
The cost of the least expensive fence is:
Total cost = $ 2000