bernicewhite156

25.08.2019 • 

Mathematics

Aflight 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. 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?

Ответ:

MiddleSchool2005

31.12.2021

Mathematics

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Well, it's 40/4 for one minute, or 10 for one minute. You want 36 mins, so you multiply by the square root (6), to get $60, to which you also add the $90 for the lesson (result is $150)

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Ответ:

makaylahamrick

22.05.2022

Mathematics

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Third option (452.16)

Step-by-step explanation:

The formula for the volume of a cylinder is:

V=πr²h

Our calculation will be:

3.14 × 16 × 9 = 452.16

Have a good day :)

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