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3 years ago

The frequency of A5 is 880Hz What is the frequency of A7, which is two octaves above A5?

1 answer:

8 0

We are given that the note A5 has a frequency of 880 Hz. We are asked what for the frequency of A7 and two octaves above A5.

For A7, referring to the frequency table of notes, its frequency is 3520 Hz.

Two octaves above A5 is A3. The frequency of this note is 220 Hz.

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Aiden refills three token machines in an arcade. He puts twice the number in machine A as in machine B, and in machine C , he pu

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It is a possibility of being 16 or 5/6

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3 years ago

Read 2 more answers

02.06)If 1 pint is equal to 2 cups, then 5 pints would equal ___ cups.

lawyer [7]

If 1 pint equals 2 cups then 5 pints equals 10 cups
Because 5 times 2 equals 10. Hope this helps.

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3 years ago

How to solve x/-3-2=5.5

amid [387]

Okay first set up the equation

x
--- -2 = 5.5
-3

add over the 2

x
--- = 7.5
-3

now you need to multiply the denominator by the answer

(-3)(7.5) = x
-22.5 = x

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3 years ago

1 5/6 divided by 2 1/8 by writing it out to solve the problem. STEP BY STEP

Artist 52 [7]

1 5/6 divided by 2 1/8
1) you must change the mixed numbers into improper fractions
2) 1 5/6 is 11/6 and 2 1/8 is 17/8
3) then you must change the operation from division to multiplication
4) then you have to find the recipricol of 17/8 (flip it) and it will be 8/17
5) Finally, you multiply and you will get 88/102: 11/6x8/17=88/102 amd yoy can simplify if asked

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3 years ago

A mattress store sells only king, queen and twin-size mattresses. Sales records at the store indicate that the number of queen-s

Nitella [24]

Answer:

The probability that the next mattress sold is either king or queen-size is P=0.8.

Step-by-step explanation:

We have 3 types of matress: queen size (Q), king size (K) and twin size (T).

We will treat the probability as the proportion (or relative frequency) of sales of each type of matress.

We know that the number of queen-size mattresses sold is one-fourth the number of king and twin-size mattresses combined. This can be expressed as:

$P_Q=\dfrac{P_K+P_T}{4}\\\\\\4P_Q-P_K-P_T=0$

We also know that three times as many king-size mattresses are sold as twin-size mattresses. We can express that as:

$P_K=3P_T\\\\P_K-3P_T=0$

Finally, we know that the sum of probablities has to be 1, or 100%.

$P_Q+P_K+P_T=1$

We can solve this by sustitution:

$P_K=3P_T\\\\4P_Q=P_K+P_T=3P_T+P_T=4P_T\\\\P_Q=P_T\\\\\\P_Q+P_K+P_T=1\\\\P_T+3P_T+P_T=1\\\\5P_T=1\\\\P_T=0.2\\\\\\P_Q=P_T=0.2\\\\P_K=3P_T=3\cdot0.2=0.6$

Now we know the probabilities of each of the matress types.

The probability that the next matress sold is either king or queen-size is:

$P_K+P_Q=0.6+0.2=0.8$

8 0

3 years ago