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On the first day of shooting a movie, a director uses 25% of a film reel. The strip of film left was 150 meters long. What is the standard length on a film reel? * O 325 300 O 200 400

Sagot :

Answer:

200 meters

Explanation:

Let the standard length of the film reel be x

Percentage of film used = 25%

Amount of film reel used = 0.25x

Amount left = 150m

Taking the sum;

0.25x + 150 = x

Collect like terms

0.25x - x = -150

-0.75x = -150

x = 150/0.75

x = 200 meters

Hence the standard length on a film reel is 200 meters

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