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Romashka-Z-Leto [24]
3 years ago
6

An airplane that travels 450 mph in still air encounters a 50-mph headwind. How long will it take the plane to travel 1200 mi in

to the wind?
Mathematics
1 answer:
BartSMP [9]3 years ago
4 0

Answer:

It takes 3 hours which is equivalent to 180 minutes

Step-by-step explanation:

The actual speed of the wind = 450 -50

= 400mph

D = r*t

D = 1200

r = 400

t = time which is unknown

Inserting into formula

1200 = 400t

Divide through by 400 to get t

1200/400 = t

3 = t

Therefore the time it will take for the plane to travel 1200 mike's is 3 hours from the answer above.

When converted to minutes, 3 hours = 3x60 = 180minutes

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First, you look at the equation. Identify the locations of variable terms (both sides of the equal sign) and the constant terms (both sides of the equal sign).

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<em>Additional comment</em>

By subtracting 3x from 5x, the result is 2x with a positive coefficient. We could solve the equation just as easily by subtracting 5x from 3x. That result would be ...

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and you would multiply by -1/2 to get x=7. I personally like to avoid having this many minus signs show up in the problem. That is why I choose to subtract the x-term with the smallest coefficient.

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