Answer:
![4/12=x/18](https://tex.z-dn.net/?f=4%2F12%3Dx%2F18)
![x=4*18/12](https://tex.z-dn.net/?f=x%3D4%2A18%2F12)
![x=6](https://tex.z-dn.net/?f=x%3D6)
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Answer:
11
Step-by-step explanation:
5 1/2 x 2= 11
I believe the answer is 3-3x
Answer:
x = 20
Step-by-step explanation:
x + 29 = 49
- 29 - 29
x=20
Let x be the number of rows and y be the number of trees per row.
x* y = 112
and y = 2x - 2
from first equation y = 112/x
so 112/x = 2x - 2
112 = 2x^2 - 2x
2x^2 - 2x - 112 = 0
x^2 - x - 56 = 0
(x - 8)(x + 7) = 0
x = 8 , - 7 (ignore the negative)
so the number of rows = 8
and number of trees per row = 112/8 = 14
Answer number of rows = 8 and number trees i each row = 14.