HEEELLLPPP!
The speed of sound, V, near Earth's surface can be represented by this equation,v = 20√t + 273 where t is the temperature in degrees Celsius. Find the temperature when V = 380 meters per second. Round to the nearest whole number.
Anwsers:
88, 90, 92, 94

Question

HEEELLLPPP!
The speed of sound, V, near Earth's surface can be represented by this equation,v = 20√t + 273 where t is the temperature in degrees Celsius. Find the temperature when V = 380 meters per second. Round to the nearest whole number. 
  Anwsers:
88, 90, 92, 94

mathteacher1729 · Answer

This means: "solve the equation $380 = 20\sqrt{t} +237$ "

mathteacher1729 · Answer

What is the first step to solving that equation?

anonymous · Answer

IDK,.

anonymous · Answer

try, there is got to be a reason you are taking that class. if you do not know guess?

anonymous · Answer

basically you need to solve for t, which means make t on one side by itself.. so how would you go about that?

anonymous · Answer

Idk, i ask because ive rtied everything and CANT figure it out. I dont come on here to get critized i come on here for help.

mathteacher1729 · Answer

@SKforlife  when it comes to solving equations, is it the square root that's throwing you off in this example?

anonymous · Answer

I am trying to help you out, not criticizing you. But i can just solve the question for you and you won't learn a thing. 
If that is what you want then:

$$380=20\sqrt{t}+237$$
$$380-237=20\sqrt{t}$$
$$143=20\sqrt{t}$$
$$143/20=\sqrt{t}$$
$$7.15=\sqrt{t}$$ ; now square both sides.
therefore t= 51.1225

the temperature when V = 380 meters per second to the nearest whole number is t= 51  degrees Celsius

goodluck