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Alex787 [66]
3 years ago
12

Harrison has 80 CDs in his music collection. If 70% of the CDs are country music and 10% are pop, how many CDs are other types o

f music?​
Mathematics
2 answers:
Hitman42 [59]3 years ago
8 0

Answer:

16.

Step-by-step explanation:

In the photo, I guess.

amm18123 years ago
5 0

Answer:

e

Step-by-step explanation:

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Need help please (50 points at stake) The farmer's plan is to fence in a strip of his land for herding his cattle so that it for
Fiesta28 [93]

15 posts plus 2 corner posts = 17 posts. With 17 posts there would be 16 spaces each side.

The space between each is 8 1/8 feet.

The length of one side is the number of spaces multiplied by the distance between each space.

Total length of one side = 16 spaces x 8 1/8 feet = 130 feet

Area = length x width.

It’s a square shape so area = 130 x 130 = 16,900 square feet

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8 0
3 years ago
For f(x) = 5x + 1
drek231 [11]

Answer:

A. f(7) = 5(7) + 1\\\\f(7) = 36

B. f^{-1}(x) = \frac{x - 1}{5}

C. f^{-1}(7) =\frac{6}{5}

D. f(\frac{6}{5}) = 7

Step-by-step explanation:

A. To solve the first part of the problem we must replace x = 7 in the function f(x) = 5x + 1

So:

f(7) = 5(7) + 1\\\\f(7) = 36

B. In part B we must find the inverse function of f(x) = 5x + 1

To find the inverse function do y = f(x)

y = 5x +1

Now clear the variable x.

\frac{y - 1}{5} = x

Replace x with y.

y = \frac{x - 1}{5}

Finally

f^{-1}(x) = \frac{x - 1}{5}

C. Now we take the inverse function found above and replace x = 7

f^{-1}(7) = \frac{7 - 1}{5}\\\\f(7) = \frac{6}{5}

D. Now we substitute x = f(f^{-1}(7)) in the original function.

x = f( f^{-1}(7))\\\\f^{-1}(7) = \frac{6}{5}\\\\ x= f(\frac{6}{5} )\\\\f(\frac{6}{5}) = 5(\frac{6}{5}) + 1\\\\f(\frac{6}{5}) = 7

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4 years ago
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How do you do _+-5=-13
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First make the dash an x. Then move over to the other side of the = so it looks like this:
-5=-13-x
You take -13 to the other side of the equal sign so it looks like this:
-5+13=-x
Then:
8=-x or x=-8
Hopefully that makes sense.
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What does the first paragraph of the text mostly describe
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How
Many tress there were a long time ago
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231 m 31 cm -14 m 48cm
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296 cm is your answer Cody. A easier way to do this question with coming on to brainly. Is add all the positive Integers OR Numbers together and then add all the negative numbers together. Then subtract the negative numbers from the positive. Something like this.

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