The cost of fabric (y) is directly proportional to he length is yards (x). If 5 yards of fabric cost $14, which equation models
2 answers:
Answer:
Step-by-step explanation:
By definition, we know that Direct proportion equation has the following form:
Where <em>k </em>is the constant of proportionality.
Then, If 5 yards of fabric cost $14, you can calculate <em>k</em> as following:
Therefore substituting the value of <em>k</em> into the first equation, you obtain the following equation:
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Given:
The length of the ladder = 12 ft
The angle of ladder with ground = 60 degrees
To find:
How far up the building the ladder will reach.
Solution:
Using the given information draw a figure as shown below.
We need to find the vertical distance between the top of ladder and the ground.
Let x be the required distance.
In a right angle triangle,
In the below triangle ABC,
Multiply both sides by 12.
Therefore, the ladder will reach ft far up the building.
