Answer:
![9\text{ cm}](https://tex.z-dn.net/?f=9%5Ctext%7B%20cm%7D)
Step-by-step explanation:
We can write the following proportion:
![\frac{\text{old perimeter}}{\text{scaled perimeter}}=\frac{\text{old scale factor}}{\text{new scale factor}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7Bold%20perimeter%7D%7D%7B%5Ctext%7Bscaled%20perimeter%7D%7D%3D%5Cfrac%7B%5Ctext%7Bold%20scale%20factor%7D%7D%7B%5Ctext%7Bnew%20scale%20factor%7D%7D)
We know that the original perimeter of the Pentagon is 921 feet. So, substitute 921 for "old perimeter."
We are going to use a scale of 3 cm = 307 feet. Since the 307 feet corresponds to the original perimeter, we are going to substitute 307 for "old scale factor" and 3 for "new scale factor."
This gives us:
![\frac{921}{x}=\frac{307}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B921%7D%7Bx%7D%3D%5Cfrac%7B307%7D%7B3%7D)
So, to find our scaled perimeter, we just need to find x.
Cross multiply:
![307x=2763](https://tex.z-dn.net/?f=307x%3D2763)
Divide both sides by 307:
![x=9](https://tex.z-dn.net/?f=x%3D9)
In other words, the total perimeter of Sawyer's drawing will be 9cm.
And we're done!
Answer:
Arav is 30 and Pawan is 40
Step-by-step explanation:
We can call Arav's age x and Pawan's age x + 10, therefore we can write the following equation:
1/7((x + 10) - 5) = 1/5(x - 5)
1/7(x + 5) = 1/5(x - 5)
5(x + 5) = 7(x - 5)
5x + 25 = 7x - 35
-2x = -60
x = 30 so x + 10 = 40
Answer:
5x-8/12y
Step-by-step explanation:
x+1
3y
+
x−2
4y
−(
x+3
/6y
=
30xy2−48y2
72y3
=
30x−48/72y
=
5x−8
/12y
Answer:
-8/15
Step-by-step explanation:
That's your answer
Answer:
B
Step-by-step explanation: