Question

NOW LAST QUESTION
The velocity of sound in air is given by the equation______ , where v is the velocity in meters per second and t is the temperature in degrees Celsius. Find the temperature when the velocity is 329 meters per second by graphing the equation. Round the answer to the nearest degree.

Answer 1

\[v = 20 \sqrt{273 + t}\]

Answer 2

This looks like normal substitution...

Is it as straightforward as 20 * sqrt (273 + 329) ?

Answer 3

oops, sorry, read that problem wrong. that's incorrect ^^

Answer 4

329 = 20*sqrt(273 + t)

Answer 5

what is sqrt?

Answer 6

square root

Answer 7

o ok :)

Answer 8

so, you just want to solve for t: (draw the square root symbol instead of writing "sqrt")

329 = 20*sqrt(273 + t)

Divide both sides by 20

16.45 = sqrt(273 + t)

Then you can square both sides to get rid of the square root.

16.45^2 = 273 + t

Answer 9

So punch 16.45 into your calculator, multiply it by 16.45, and then subtract 273 to solve for the temperature t.

Answer 10

And then your problem says round that to the nearest whole degree.

Answer 11

So it would be -6?