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 of sound in air is 358 meters per second
Round to the nearest degree.

A. 6,681°C

B. 6,135°C

C. 502°C

D. 47°C

D. 47°C

Step-by-step explanation:

v = 358 m/s

358 = 20√(273 + t)

358 : 20 = √(273 + t)

17.9 = √(273 + t)

17.9^2 = 273 + t

320.41 = 273 + t

320.41 - 273 = t

t = 47.41  ≈ 47

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x