Claire boarded an airplane in Richmond va and flew 414 miles directly to Charleston sc. The total flight time was 3/4 hour. How
2 answers:
Answer: 552 mph
Step-by-step explanation:
The formula to find speed is given by :-
Given : Claire boarded an airplane in Richmond va and flew 414 miles directly to Charleston sc.
Distance = 414 miles.
The total flight time was hour.
Then, the speed of Claire's airplane=
Hence, the speed of Claire's airplane= 552 mph.
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Answer:
The required system of equations is,
.
Step-by-step explanation:
Let the number of hours spent by Lucy = x
It is given that,
Local zoo charges initial fee $25 and per hour fee $1.
So, the equation representing the cost if Lucy stays 'x' hours is,
in dollars.
Also, Local citcus charges initial fee $20 and per hour fee $2.
So, the equation representing the cost if Lucy stays 'x' hours is,
in dollars.
Since, the objective function for the situation is to 'minimize the cost'.
So, upon solving the equations, we will get the minimum value as,
25+x = 20+2x
i.e. x= 5
Thus,
implies
i.e. y= $30
implies
i.e.
i.e. y= $30
Thus, the minimum value is $30.
The required system of equations is,
.