Answer:
The correct answer is 24
Step-by-step explanation:
to solve this you will need to use the pathagreom theorum
a^{2}+b^{2}=c^{2}
A= one side lenth
B= the secons side lenth
C= hypotnuse
It is helpfull to draw out the situation
you know that the latter is 25 ft, that is your hypotnuse
you also know that the 7 ft away from the base of the building is one of the side lenths, lets call it side a
so plug the numbers into the equation
7^2 + b^2 = 25 ^2
you leave b^2 alone because that is the side you are trying to find
now square 7 and 25 but leave b^2 alone
49 + b^2 = 625
now subtract 49 from both sides
b^2 = 576
now to get rid of the square of b you have to do the opposite and square root both sides removing the square of the B and giving you the answer of..........
B= 24
Hope this helped!! I tryed to explain it as simpil as possiable
Answer:
5 parts are shaded and 4 parts are white so:
There are 9 parts all together.
We can then form ratio's of the white areas and the shaded areas:
White Area Ratio =
![\frac{4}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B9%7D%20)
Shaded Area Ratio =
![\frac{5}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B9%7D%20)
Let the area of sqaure be equated to x, which means let the entire area of the square equal to x:
x = Area of whole square
Now we can form an equation :
![\frac{5}{9} x = 165](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B9%7D%20x%20%3D%20165)
So now we just need to solve for x:
![x = \frac{165}{ \frac{5}{9} }](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B165%7D%7B%20%5Cfrac%7B5%7D%7B9%7D%20%7D%20)
![x = 297](https://tex.z-dn.net/?f=x%20%3D%20297)
The area of the square is:
![297 {cm}^{2}](https://tex.z-dn.net/?f=297%20%7Bcm%7D%5E%7B2%7D%20)
Hey there! :D
If 20 is 25% of a number,
we know that it is a quarter of a number.
20*4= 80
20 is 25% of 80.
I hope this helps!
~kaikers
Answer:
You forgot to post your mistake.
Step-by-step explanation: