This is problem #9. I'm not sure how to solve #10, although the solution may be found in a similar way.
Solve x-2/y = z for y.
1 answer:
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I graphed the given points and used Pythagorean theorem to get the value of each side of the rhombus.
Each side of the rhombus served as the hypotenuse of the imaginary right triangle formed in the graph. The diagonals formed are mutually bisecting and have cut each diagonal in equal parts.
Pls. see attached graph.
Each side of the rhombus served as the hypotenuse of the imaginary right triangle formed in the graph. The diagonals formed are mutually bisecting and have cut each diagonal in equal parts.
Pls. see attached graph.
Answer:
Height of an oak tree= 9 meters
Height of a pine tree = 12 meters
Step-by-step explanation:
Given:
The combined height of 1 oak tree and 1 pine tree = 21 meters
Height of 4 oak trees = 24 meters more than 1 pine tree
To find the height of 1 pine tree and height of one oak tree.
Solution:
Let the height of one oak tree be = meters.
Let height of one pine tree = meters.
Combined height can be given as :
-------------[1]
Height of 4 oak trees = 24 meters more than 1 pine tree
The above statement can be given as :
------------[2]
Rearranging equation [2] by subtracting both sides by .
-------------[2]
Adding rearranged equation [2] to [1].
+--------------------
Dividing both sides by 5.
∴
Plugging in in equation [1]
Subtracting both sides by 9.
Height of an oak tree= 9 meters
Height of a pine tree = 12 meters