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Savatey [412]
3 years ago
6

A speed boat is traveling at 100 km/hr. How many hours will it take for the boat to cover a distance of 115 km?

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
4 0
Use ratios and proportions to figure this out- 100km /1hr is equal to 115km/x(the number we're trying to figure out.) So, write this equation- 100x=115(1) Solve that equation(the answer is 1.15) and you get the answer to your question.
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271403 rounded to the nearest ten thousand
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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The bar diagram represents 24 hours in one day and shows a mark at 30%. If you sleep 30% of the day, how many hours do you sleep
Sedbober [7]
30% = 3/10

Number of hours you sleep = 24hours × 3/10
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Hope this helps! :)
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3 years ago
Does the square root of a rational number have to come out as a rational number?
AlekseyPX

Answer:

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Step-by-step explanation:

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3 years ago
Please someone help me
ruslelena [56]

Answer:

r = 0.046212737

Step-by-step explanation:

A = 14,400 (what your investment originally is)

P = 7,200 (what you want your investment to be)

n = 365 (interest is compounded daily)

t = 15 (15 years)

Plug all of these numbers into the equation, then solve for r

14,400 = 7,200(1 + r/365)^365 · 15

Divide 7,200 on both sides --> 2 = (1 + r/365)^365 · 15

365 · 15 = 5475 --> 2 = (1 + r/365)^5475

5475√(2) = 1 + r/365 (root 5475 both sides to cancel out the exponent)

(5475√(2)) - 1 = r/365 (subtract one from both sides)

((5475√(2)) - 1) · 365 = r (multiply both sides by 365 to isolate r)

Type the left side into the calculator to get r --> 0.046212737.

Hope this helps!

8 0
3 years ago
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Simplify:
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Answer:

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Step-by-step explanation:

hope it will help!

8 0
3 years ago
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