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NemiM [27]
3 years ago
15

Please help! I'll give Brainliest! 20 points!

Mathematics
1 answer:
trapecia [35]3 years ago
3 0

Answer:

  78

Step-by-step explanation:

The mean is the sum of the 5 numbers, divided by 5:

  µ = (9 + 18 + 27 + 30 + x)/5 = (84 +x)/5 = 16.8 +x/5

The median of a 5-number set will be the middle number. Depending on the value of x, the mean/median may be 18, x, or 27, so we have three possible equations for x.

  16.8 +x/5 = 18

  x/5 = 1.2 . . . . . subtract 16.8

  x = 6 . . . . . . . . multiply by 5

___

  16.8 +x/5 = x

  16.8 = 4/5x . . . . subtract x/5

  21 = x . . . . . . . . . multiply by 5/4

___

  16.8 +x/5 = 27

  x/5 = 10.2 . . . . . . subtract 16.8

  x = 51 . . . . . . . . . . multiply by 5

___

The sum of the possible values of x is ...

  sum = 6 + 21 + 51 = 78

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a company that manufactures bicycles has a fixed cost of $80,000. it costs $100 to produce each bicycle. the total cost for the
frez [133]

C(x) = 80000 + 100x is the total cost as function of number of cycles produced

C(90) = 89000 and it costs $ 89000 to produce 90 bicycles

<em><u>Solution:</u></em>

Given that, company that manufactures bicycles has a fixed cost of $80,000

Fixed cost = $ 80,000

Let x be the number of cycles produced

Let C(x) be the total cost as function of number of cycles produced

It costs $100 to produce each bicycle

Variable cost = 100 x number of cycles produced

variable cost = 100x

The total cost for the company is the sum of its fixed cost and variable costs

total cost = fixed cost + variable cost

C(x) = 80000 + 100x

Thus total cost as function of "x" is found

<em><u>Find and interpret C(90)</u></em>

Substitute x = 90 in C(x)

C(90) = 80000 + 100(90)

C(90) = 80000 + 9000

C(90) = 89000

Thus it costs $ 89000 to produce 90 bicycles

3 0
3 years ago
Members of a softball team raised $1334.50 to go to a tournament. They rented a bus for $779.50 and budgeted $46.25 per player f
grin007 [14]

Answer:

12

Step-by-step explanation:

The most important factor is the total budget $1334.50, for the softball tournament.

1. Subtract $779.50 from $1334.50 = $555

2. We have $555 left, and a budget of $46.25 per player for meals

3. Divide 555/46.25 = 12

4. 12 softball players can be brought to the tournament

4 0
2 years ago
Read 2 more answers
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Free_Kalibri [48]

Answer:

-7

Step-by-step explanation:

-2 - 5 is -7

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3 years ago
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raketka [301]
2x-2x/7=x/2+17/2 is equal to 7
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3 years ago
Is the answers correct at the bottom
diamong [38]
The answers are correct
3 0
3 years ago
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