Place commas correley in the numbers
1 answer:
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The total cost includes the setup cost + per hour cost.
Let, x represents the time and y represents the total cost.
.... (1)
Let Y represent the cost for B's DJ service.
.... (2)
a. Graphing both the equations give the intersection point (solution) as (4,500)
It means for 4 hours, the total cost of both the DJ's is same at $500.
b. Substitution Method.
Plug y = 125x in equation (1)
Hence, the total cost for 4 hours in both the service is $500.
c. Addition method.
Multiply equation (2) by -1
.... Equation (3).
Add euation (1) and equation (3)
Solution: For x = 4, y = 500 ( same as the previous two methods)
For x = 2, equation (1)
For x = 2, equation (2)
Hence, for 2 hours, DJ B would be a better choice since it would charge $250.
For x = 6 hours, equation (1)
For x= 6, equation (2)
For 6 hours, DJ A would be better option since it charges $650 for 6 hours.
Answer:
Step-by-step explanation:
Given
The temperature on the ground is
temperature drop observed is
The height of the plane is
The total increase in height per is
units
Temperature drop is
The temperature at that altitude is