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ladessa [460]
3 years ago
10

A student's cost for last semester at her community college was $2800. She spent $308 of that on books. What percent of last sem

ester's college costs was spent on
books?
% of last semester's college costs was spent on books.
Mathematics
1 answer:
Rudik [331]3 years ago
4 0
You want to divide the cost of the books by the total costs.

308/2800 = 0.11

You then need to convert 0.11 to a percent: 0.11 = 11%

Therefore, 11% of her costs last semester were spent on books.

That’s too much!
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Answer:

Horizontal distance between lifeguard and the person is 22 feet.

Step-by-step explanation:

Given: A lifeguard sees a person in distress.The eye level of the lifeguard is 15 feet above the ground. Angle of depression is 34°.

To find: Horizontal distance between lifeguard and the person.

Solution : If we draw a triangle then tan∅ = \frac{height}{base}

               Here base is the horizontal distance.

               Now we put the values in the formula.

               tan 34° = \frac{15}{base}

              Or Base = \frac{15}{tan34}

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So the answer is 22 feet.

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