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Marianna [84]
3 years ago
7

WILL GIVE BRAINLIEST!! The data set {2,5,q,10,13,16} has mean x¯=9Find the value of q

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

  • #3. 8

Step-by-step explanation:

<u>Frequency of data </u>

  • 6

<u>Sum of data:</u>

  • 2 + 5 + q + 10 + 13 + 16 = 46 + q

<u>Sum of data as per mean and frequencies:</u>

  • 9*6 = 54

<u>Compare the sums:</u>

  • 46 + q = 54
  • q = 54 - 46
  • q = 8

Correct choice is #3. 8

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Find last year's salary if, after a 5% pay raise, this year's salary is $36,225.
Nataly [62]

Answer:

$34500

Step-by-step explanation:

In order to reverse a 5% pay raise, divide by 1.05.

36225/1.05=34500

6 0
3 years ago
An antique collectible has a value of $235 right now. It will increase in value by 9% each year. Find the value the collectible
kirill [66]

Answer:

Step-by-step explanation: An antique collectible has a value of $235 right now. It will increase in value by 9% each year. Find the value the collectible after 16 years, A.$2115 B. $1017 C.$856 D.933

8 0
3 years ago
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Two families are shopping for a camping trip. The first family buys 3 flashlights and 4 sleeping bags at a cost of $118. The sec
Sliva [168]

Answer:

3x +4y = 118

5x+6y =180

y= $25

Step-by-step explanation:

Let x = the cost of a flashlight

Let y = the cost of a sleeping bag

3x +4y = 118

5x+6y =180

Multiply the first equation by -5

-5(3x +4y) = -5*118

-15x -20y = -590


Multiply the second equation by 3

3(5x+6y) =3*180

15x + 18y = 540

Add the modified equations together.

We are using elimination to eliminate the variable x

-15x -20y = -590

15x + 18y = 540

----------------------------

-2y = -50

Divide by -2

-2y/-2 = -50/-2

y =25

Each sleeping bag costs $25

7 0
3 years ago
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The producte of x and the sum of 6 and 8 times the square of x
seraphim [82]

Product is multiplication.

The first part would be x(6+8) , x times the sum of 6 plus 8.

The second part would be written as x^2, the square of x

Now combine to get:

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7 0
3 years ago
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Answer:

1. 52

2. 50

3. 71

4. 28

5. 32

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