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Klio2033 [76]
3 years ago
12

5. Class 7887 has 2:7 math classes daily. How many math classes do they have

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

56.7

Step-by-step explanation:

2.7 x 21 = 56.7

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For the percent 82%, (a) write a decimal and (b) write a fraction in lowest terms.
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Answer:

.82

41/50

Step-by-step explanation:

82%

Move the decimal 2 places to the left to change to decimal form

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Marvin rides his bike at an average speed of 13 miles per hour how far can he bike in 8 hours?
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An audiometer produces a pure tone with a frequency f of 1200 hertz (cycles per second). The maximum pressure P produced from th
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Answer: Pressure(t) = 5mP*sin(191.08*t)

Step-by-step explanation:

The information we have:

Maximum pressure P = 5 mP

frequency = 1200Hz

Period = 1/frequency = (1/1200) seconds

when t = 0, P = 0, so we should use a sin function (because sin(0) = 0)

Then we can write this as:

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Pressure(t) = 5*sin(c*t)

knowing that the period is 1/1200 seconds, we have that:

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c = 1200/(2*3.14) 1/s= 600/3.14 1/s

Our function is

Pressure(t) = 5mP*sin(191.08*t)

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The second one is the answer

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