1.37cm 47.75cm
-———. =. ————
3.3m x
1.37x = 157.575
Divide by 1.37 on both sides
x= 115.018 m
The building is 115.018 m long. Hope it helps, and if needed, i can explain why!
Answer:
x = 76 roses
Step-by-step explanation:
Step 1: Define variables
x = # of roses
y = # of tulips
Step 2: Write systems of equations
x = 4y + 8
5x + 2y = 414
Step 3: Use Substitution
5(4y + 8) + 2y = 414
20y + 40 + 2y = 414
22y = 374
y = 17
Step 4: Plug in <em>y</em> to find <em>x</em>
x = 4(17) + 8
x = 68 + 8
x = 76
Answer:
B
Step-by-step explanation:
21 is the right answer goodluck
The equation is the following
![x^2- \frac{y^2}{100}](https://tex.z-dn.net/?f=x%5E2-%20%5Cfrac%7By%5E2%7D%7B100%7D)
This is a difference of two squares, the first one being the square of
![x](https://tex.z-dn.net/?f=x)
, the second one being the square of
![\frac{y}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7By%7D%7B10%7D%20)
. The difference of two squares can be factorized as
![A^2 - B^2 = (A+B)(A-B)](https://tex.z-dn.net/?f=A%5E2%20-%20B%5E2%20%3D%20%28A%2BB%29%28A-B%29)
If we apply this rule to our equation, we find