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GenaCL600 [577]
4 years ago
13

Find Rates of Change

Mathematics
2 answers:
sergejj [24]4 years ago
6 0
(0,80)(5,40) are the answers
Shtirlitz [24]4 years ago
4 0
This is the answer for the rate of change. (0,80) (5,40)
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DJ Ali is making a playlist for a friend; she is trying to decide what 9 songs to play and in what order they should be played.
Wewaii [24]

Answer:

1.637 x 10¹⁴ different playlists

Step-by-step explanation:

Since DJ Ali needs to choose 9 songs and wishes that the number of blues, country and jazz songs are the same, she needs to pick 3 songs of each type. The total number of ways she can choose the songs, without considering their order is:

N_{songs} =C(16,3)*C(23,3)*C(15,3)\\N_{songs} =\frac{16!}{(16-3)!3!}*\frac{23!}{(23-3)!3!}*\frac{15!}{(15-3)!3!}\\N_{songs} = 451,250,800

The number of possible ways of ordering those nine song is:

N_{ways} = 451,250,800*P(9,9)\\N_{ways} = 451,250,800*\frac{9!}{(9-9)!}\\N_{ways} =1.637*10^{14}

There are 1.637 x 10¹⁴ different possible playlist.

4 0
3 years ago
Write the equation of a line with the x and y intecepts standard form
Lera25 [3.4K]
Standard form y =mx + b
8 0
3 years ago
PLEASE HELP!!!!!!!!!!!!! ASAPPP
Verizon [17]

Answer:

JO !

Step-by-step explanation:

get he exponet out the way

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that leaves you with 3+4x1

do 4x 1 that equals 4

3+ 4 = 7

5 0
3 years ago
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3x + 2 = -13. Plz help
mote1985 [20]
The answer is -5 hope this helps

3 0
3 years ago
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They need to raise $1,680 for travel expenses. Each chocolate bar is being sold for $2, and each box contains 30 chocolate bars.
leonid [27]

Answer:

Each scholar have to sell 4 boxes in order to raise enough money to cover the team's travel expenses

Step-by-step explanation:

Let x denotes number of boxes to be sold by each scholar to raise enough money to cover the team's travel expenses.

Number of scholars = 7

Total number of boxes =7x

Total number of chocolate bars =(7x)(30)=210x

Price of 1 chocolate bar = $2

Price of 210x chocolate bars =210x(2)=\$420x

Also,

Total amount to be raised for travel expenses = $1680

So,

1680=420x\\x=\frac{1680}{420}\\ x=4

Therefore,

each scholar have to sell 4 boxes in order to raise enough money to cover the team's travel expenses

3 0
3 years ago
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