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dedylja [7]
3 years ago
13

A man can run a mile in 4 minutes. calculate his average speed in kilometers per hour. show your work. (1 mile = 1.61 km)

Mathematics
1 answer:
elena55 [62]3 years ago
7 0

1 mile =1.61km

60 minutes per hour

60/4 = 15 ( he can run 15 miles in one hour)

15 x 1.61 = 24.15 km per hour

round your answer if needed

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Answer:

A

Step-by-step explanation:

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Determine, to the nearest tenth of a year, how long it would taken an investment to double at a 3 3/4% interest rate, compounded
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Based on the interest rate and continuous compounding, the investment would double in value after 18.5 years.

We have given that,

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The future value using continuous compounding is:

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2 years ago
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jok3333 [9.3K]

Answer:

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7 0
3 years ago
Solve the triangle. Round your answers to the nearest tenth.
wel

Answer:

m∠A ≈ 43°

m∠B ≈ 55°

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Step-by-step explanation:

Law of Sines: \frac{a}{sinA} =\frac{b}{sinB} =\frac{c}{sinC}

Step 1: Find m∠B

\frac{29}{sin82} =\frac{24}{sinB}

Step 2: Solve for ∠B

29sinB = 24sin82°

sinB = 24sin82°/29

B = sin⁻¹(24sin82°/29)

B = 55.038°

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180 - 137.038

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Step 4: Find BC

\frac{29}{sin82} =\frac{BC}{sin42.962}

Step 5: Solve for BC

29sin42.962° = BCsin82°

BC = 29sin42.962°/sin82°

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4 0
3 years ago
If david must score 90 percent on his test in order to a if he scored a 89,90,98,86 what is the score on his fifth test
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David's score on his fifth test would be an 87. If you add up all the scores from his first to his fourth test, it would 363. However, since there are five tests, in order to get a 90 percent, the sum of all five test scores would be 450. 450 - 363 = 87.
7 0
3 years ago
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