Christine has 28 jazz songs and classical songs on a playlist. The play list has 3 times as many jazz songs as classical songs. She has 7 times as many rock songs as classical songs. How many Jazz songs are in the playlist? How many rock songs are on the playlist?

Answers

Answer 1
Answer: I assume you mean the total number of jazz and classical songs combined is 28 songs?
3 times as many jazz as classical:
Means there is a ratio of 3 jazz to 1 classical, which means there are essentially 4 parts (3+1=4). So if we divide 28/4=7. This gives one part = number of classical songs, jazz is 3 parts so 7*3=21 jazz songs.
7 times as many rock as classical:
From above we know there are 7 classical songs. 7*7=49 rock songs.
Jazz=21 songs
Rock=49 songs

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Answers

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Answer:

answer is C

Step-by-step explanation:

Evaluate the function at x = –2
 A.y = –2

 B.y = 0

 C.y = 2

 D.y = 3

Answers

- -  C.

This is because if x=-2 then go to the -2 on the grid.

Now go up until the line reaches a point in the grid in which is "on" a number.
I have attached a picture explaining what I mean.
As you can see the line reached a point (on x=-2) and the answer is C.2 (Positive because it is on the higher end no the lower end.



The answer is equal C, y = 2.

Help please. what does x equal.

Answers

The answer would be 53

In ΔABC, b = 69 cm, c = 59 cm and ∠A=72°. Find the area of ΔABC, to the nearest square centimeter.

Answers

Answer:

1936

Step-by-step explanation:

The answer is 52 cm ig

Solve for pi please.

Answers

Answer:

2A / r^2 = pi

Step-by-step explanation:

A = 1/2 pi r^2

Multiply by 2

2A = pi r^2

Divide by r^2

2A / r^2 =  pi r^2/r^2

2A / r^2 = pi

In a rhombus, the sides are 14 inches long. two intersecting sides form a 60 degree angle. what are the exact lengths of the two diagonals

Answers

Long Diagonal AD = Square Root  (2•Side² + 2•Side² • cos(A) )
Long Diagonal AD = Square Root (2*14^2 + 2*14^2 * cos(60) )
Long Diagonal AD = Square Root ( 392 + 392*.5)
Long Diagonal AD = Square Root (392 + 196)
Long Diagonal AD = Square Root (588)
Long Diagonal AD =
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Short Diagonal BC = Square Root  (2•Side² - 2•Side² • cos(A) )
Short Diagonal AD = Square Root ( 392 - 392*.5)
Short Diagonal AD = Square Root ( 392 - 196)
Short Diagonal AD = Square Root (196)
Short Diagonal AD = 14