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Nezavi [6.7K]
3 years ago
7

Holly rode her bike for 24 miles at 6 miles per hour. She finished her ride at 1:00 p.m.

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0
Time = distance/speed
Since you want to find the time Holly spent riding, you need to divide her distance (24 miles) by her speed (6 miles/hour) to get the number of hours (4) that she rode. Her starting time added to the time spend riding will give her ending time. One must subtract the riding time from the ending time to find the starting time.

Selection A is appropriate.
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If Diana walks forward and her angle looking to the top of the building changes to 40°, how much closer is she to the building?
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<h3>How to calculate the distance from the building</h3>

To calculate the distance between her and the building, we make use of the following tangent ratio

\tan(\theta) = \frac{h}{d}

Where:

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So, we have:

\tan(40) = \frac{130}{d}

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d = \frac{130}{\tan(40)}

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The difference in both distance is:

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Hence, Diana is 17.6 feet closer to the building

Read more about trigonometry ratios at:

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