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ExtremeBDS [4]
3 years ago
13

A new CD ppayer costs $80. Ninny waits until it is 30% off to buy it. Find the amount that Minny pays for the new CD player befo

re tax.
Mathematics
1 answer:
Lyrx [107]3 years ago
8 0
She only paid $56 without tax
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3 qt is equally to how many pt
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Answer:

6

Step-by-step explanation:

Every 1 quart equals 2 pints. SO every 3 quarts equals 6 pints.

8 0
4 years ago
A basketball coach keeps track of the points scored per game for all of the players . She gives a trophy to the player with the
Verdich [7]

Your Question was incomplete so I will solve a similar question that will help you to tackle this kind of questions.

Q)Two university female basketball players are being considered for an award to be given to the most consistent player with the highest scoring average for the season. The number of points scored per game for all games played during the season is given by the following table. ( Table Attached)

a) Calculate the population mean and population standard deviation of the number of points scored per game for each player.

(b) Using the results of part (a) which player should receive the award.

Answer:

<h3><u>Player B should receive the award.</u></h3><h3>Step-by-step explanation:</h3>

Points of player A:- 5,32,45,25,8,10,35,12,37,21

<u>First we will calculate the mean for player A</u>

∑x =  5 + 32 + 45 + 25 + 8 + 10 + 35 + 12 + 37 + 21

∑x = 230

N = 10

<u>Mean = µ= ∑x/N = 230/10 = 23</u>

<u>Now we will calculate the standard deviation for Player A</u>

x - µ = -18 , 9, 22, 2, -15, -13, 12, 11, 14, -2

(x - µ)^2 = 324, 81, 484, 4, 225, 169, 144, 121, 196, 4

∑(x - µ)^2 = 1752

σ = sqrt( ∑((x - µ)^2/N) )

σ = sqrt(1752/10)

<u>σ = 13.236</u>

<u>Calculating mean for player B:</u>

Points of player B = 18, 20, 22, 15, 35, 24, 29, 19, 25, 23

∑x =  18 + 20 + 22 + 15 + 35 + 24 + 29 + 19 + 25 + 23

N =10

µ = 230/10

<u>µ  = 23</u>

<u>Calculating standard deviation for player B:</u>

(x - µ ) = -5, -3, -1, -8, 12, 1, 6, -4, 2, 0

(x -µ )^2 = 25, 9, 1, 64, 144, 1, 36, 16, 4, 0

∑(x - µ)^2 = 300

σ = sqrt(300/10)

<u>σ = 5.48</u>

Since both Player A and Player B have same mean we will calculated the coefficient of variation for both the players.

<u>For player A:</u>

σa/µa *100 = 13.24/23 *100 = 57.56

<u>For Player B:</u>

σb/µb *100 = 5.48/23 * 100 = 23.82

<u>Since the coefficient of variation of Player B is less than Player A hence Player B should receive the award.</u>

3 0
3 years ago
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Randy invested $850 in a regular savings account that paid compound interest at a rate of 3.75% per year, compounded quarterly.
grin007 [14]

Answer:

the answer is a.

Step-by-step explanation:

6 0
2 years ago
Niko wants to buy a bicycle that costs $145. He has already saved $25. He says that he can determine the amount he still needs t
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145 - 25 = b
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3 years ago
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Solve the Equation (NO LINKS AND ONLY IF YOU KNOW PLS)
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O.573994929277273994
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