A flight instructor charges $50 per lesson, plus anadditional fee for the use of his plane. The charge for
the use of the plane varies directly with the square root
of the time the plane is used. If a lesson plus 16 minutes
of plane usage costs $90, what is the total amount
charged for a lesson having 36 minutes of plane usage?
Answers
The total amount charged for a lesson having 36 minutes of plane usage is $110.
Given that, a flight instructor charges $50 per lesson, plus an additional fee for the use of his plane.
The charge for the use of the plane varies directly with the square root of the time the plane is used.
x∝√y
x=k√y
Here, 90 = 50 + k√16
k = (90-50)/4
k = 40/ 4
k = 10
For 36 minutes, total charge
Total amount charged = 50 +10√36
Total amount charged = 50 + 10×6
Total amount charged = 50+60
= $110
Therefore, the total amount charged for a lesson having 36 minutes of plane usage is $110.
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Answer:
410
Step-by-step explanation:
Related Questions
I need help with 10. A-C please
An experiment is designed to determine the launch angle that will give a projectile the greatest range (make it go the longest distance). The "launcher" is a slingshot type of apparatus that is spring-loaded and released by a trigger. For each trial, the same painted rock is retrieved and launched. Measurements are taken linearly from the launch site to the landing site. The trials were done on a windless day.Which of the following would be a good hypothesis for this experiment? If the angle of the launcher is increased, the rock will go further. Changing the angle of the launcher will vary the distance that the rock can be projected.
4. 9 whats the answer
What is 1/9 of 63% of $6,000?
Answers
Step-by-step explanation:
no.
in a function every x-value has exactly one associated y- value.
but this is clearly violated for x between about -4.5 and -3.5, where every x-value has 3 different associated y-values.
e.g. at x = -3, we get y = 0.5, -2 and -4.25.
Answers
Answer:
sure what is ur user and passwords and are you using g00gle class room
Step-by-step explanation:
B) V = 4x3 + 4x2 + 5x
C) V = 4x3 + 4x2 + 15x
D) V = 4x3 + 16x2 + 15x
Answers
V = x(2x + 3)(2x + 5)
V = x(2x(2x + 5) + 3(2x + 5))
V = x(2x(2x) + 2x(5) + 3(2x) + 3(5))
V = x(4x² + 10x + 6x + 15)
V = x(4x² + 16x + 15)
V = x(4x²) + x(16x) + x(15)
V = 4x³ + 16x² + 15c
The answer is D.
a. positive
b. negative
Answers
Solution:
The answer is: 548.1 ⇒a. positive
Answers
Answer:
2n-7
Step-by-step explanation:
the product of 2 and a number is 2 times a number, so number is n. (this is multiplicaiton) it then becomes 2n. 7 less than that is 2n-7. (If it's less than, it goes after the variables 2n)
Explanation:
7 less --> -7
product of 2 and a number --> 2x
Answer:
2x-7
I hope this Helps!!
B. One of the equations may easily be solved for a variable.
C. An exact solution is needed.
D. Both of the equations are solved for one variable.