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Semira did a physics activity during which she rolled toy cars down a ramp and measured the distance each car traveled. On one trial, the actual distance each car traveled was 75 cm. Semira's measurement was too short and had a 12% error. What was her distance measurement.?

2 Answers

1 vote

Answer:

Explanation:

If X is the distance measured, then

(|X - 75|/75)*100% =12%

|X - 75|/75 = 0.12

|X -75| = 9

X - 75 =9 or X = 84 cm

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User Henry Heath
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7.9k points
2 votes
Semira's measurement was 66 centimeters. 
User John Tribe
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8.3k points