Hi,
This demonstrates how to put normal from to fraction and then divide to get a result.
![2 \div 3 = \frac{2}{3} = 0.67](https://tex.z-dn.net/?f=2%20%5Cdiv%203%20%3D%20%20%5Cfrac%7B2%7D%7B3%7D%20%20%3D%200.67)
Hope this helps.
r3t40
<h3>
Answer: 10 feet</h3>
===================================================
How to get this answer:
A pentagon has 5 sides. If each side is the same length, then each side is 20/5 = 4 feet long. That halves to 4/2 = 2 feet. Each side is now 2 feet long, and there are 5 total sides, so 2*5 = 10 feet is the new perimeter.
A shortcut is to simply divide the perimeter in half to get 20/2 = 10. The reason why this works is because the perimeter is the sum of all the sides, which are all being cut in half.
-----
Algebraically, if we had the five sides a,b,c,d,e then
P = a+b+c+d+e
is the perimeter
Cutting each side in half gives
0.5*a+0.5*b+0.5*c+0.5*d+0.5*e = 0.5*(a+b+c+d+e) = 0.5*P
showing that we've cut the perimeter in half.
Answer:
10.25641...% or 10.3%
Step-by-step explanation:
(86/78)/78 = 8/78
8/78 * 100 = 400/39 = 10.25641...%
The answer is kite! hope this helps
Answer: m= -4
Step 1: Substitute information
To solve this we will use the substitution method. This means that we will use the information provided to us in the second equation, and substitute it into the first equation. We are told what n equals, so let’s substitute this now.
m-2n=8
m-2(m-2)=8
Step 2: Distribute
Now that we have substituted the information, let’s distribute. This means that we will multiply the numbers on the outside of the parentheses with the numbers on the inside of the parentheses. Let’s do this now.
m-2(m-2)=8
m-2m+4=8
Step 3: Combine like terms
Now that we have distributed, we can continue solving the problem. The next step is to combine like terms. This means to combine terms with the same variable, or lack of. In this case, that is m and -2m.
m-2m+4=8
-m+4=8
Step 4: Get variable alone on the left side
We can now work to get the variable alone on the left side. We can do this by moving the number on the right side, in this case by adding 4 on both sides.
-m+4=8
-m=4
Step 5: Make m positive
In this final step, we must work to make m positive. We can do this by multiplying each term by -1. This will make m positive, and 4 negative. Let’s do this now.
-m=4
-1(-m)= -1(4)
m= -4
This is your answer! M is equal to -4. Hope this helps! Comment below for more questions.