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>
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Answer:
The equation has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.
Step-by-step explanation:
Checking the equation
putting x = -2 in the equation
L.H.S=R.H.S
putting x = 1/5 in the equation
L.H.S=R.H.S
As putting x = -2 and x = 1/5 satisfy the equation.
Therefore, the equation has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.