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Genrish500 [490]
3 years ago
13

An orchestra of 25 members bought tickets, at all different prices, to a concert, and the mean price paid was $82. A new musicia

n joined the orchestra and spent $90 on his ticket to the same concert. What is the new mean price paid when the new musician is included? Round to the nearest cent.
Mathematics
1 answer:
QveST [7]3 years ago
4 0

Answer:

$82.31

Step-by-step explanation:

First, we need to find the total amount of money paid

82 * 25 = 2050\\

Next, add the new price for the new total

2050 + 90 = 2160

Now divide by total members (25 +1 = 26)

2160 / 90 = $82.31

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Whats the answer to: 3x + 5y = 2 9x + 11y = 14
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{

3x+5y=2

9x+11y=14

∣⋅(−3)

−9x−15y=−6

9x+11y=14

add both sides of equations

. −4y=8 ∣:(=4)

. y=−2

substitute the value of y to the first equation

3x+5⋅(−2)=2

3x−10=2 ∣+10

3x=12 ∣:3

x=4

Answer: x=4; y=−2→(4; −2)

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3 years ago
What is the square root of 16
ch4aika [34]
The square root of 16 is 4
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4 years ago
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
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<u>Step-by-step explanation:</u>

The formula for the z-score is:

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6 0
3 years ago
A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee
katrin [286]

Answer: A) 1260

Step-by-step explanation:

We know that the number of combinations of n things taking r at a time is given by :-

^nC_r=\dfrac{n!}{(n-r)!r!}

Given : Total multiple-choice questions  = 9

Total open-ended problems=6

If an examine must answer 6 of the multiple-choice questions and 4 of the open-ended problems ,

No. of ways to answer 6 multiple-choice questions

= ^9C_6=\dfrac{9!}{6!(9-6)!}=\dfrac{9\times8\times7\times6!}{6!3!}=84

No. of ways to answer 4 open-ended problems

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Hence, the correct answer is option A) 1260

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3 years ago
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