A warehouse charges its customers $4 per day for every 10 cubic feet of space used for storage. The figure records the storage u
sed by one company over a month. How much will the company have to pay?
1 answer:
Figure 1 is the original figure, while figure 2 is modified, so that a triangle and a rectangle can be easily observed.
The area of triangle and rectangle represents the total number of cubic feet of storage multiply by the number of days of storage usage.
Hence
Total Area = Area of triangle + Area of rectangle
= 30 x 10,000 + ½ 30 x (30,000 – 10,000)
= 300,000 + 300,000
= 600,000
As 10 cubic feet of storage cost $5 for a day, so total amount company have to pay
<span>= (5 x 600,000) / 10 = $300,000</span>
You might be interested in
Given:
Vertex ===> (h, k) (2, 4)
The parabola passes through the point: (x, y) ==> (3, 6)
Let's find the equation of a parabola.
To find the equation, use the general equation of a parabola with vertex (h, k):
Where:
(h, k) ==> (2, 4)
(x, y) ==> (3, 6)
Substitute values into the general equation:
Subtract 4 from both sides:
Substitute 2 for a, and input the values of the vertex (h, k) in the general vertex equation:
Therefore, the equation of the parabola is:
ANSWER: