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zvonat [6]
3 years ago
8

Nick and Liz have decided to move from the city to the suburbs. This means that they will have to make the essential purchase of

a car in order to get to work. They researched used 2-year-old cars of the same make, model, condition, and equipped with the same options. They found a website stating that the average price should be $18,500. These are the prices they were quoted: $15,500, $18,800, $16,900, $19,900, $18,000, $21,000 If they continued their search for one more price quote, what would that price have to be so that the mean of all seven of the car prices would be the same as the mean quoted on the website?
Mathematics
1 answer:
sineoko [7]3 years ago
6 0

Answer:

$=19400

Step-by-step explanation:

Average prices= $18,500

Number of prices that were quoted= 7

Expected sum that produces this mean= 7*18,500=$129,500

Sum of quoted prices=

$(15,500+ 18,800+ 16,900+ 19,900+18,000+21,000) =$110100

Next price to be quoted will be ;

$129,500-$110,100

$=19400

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*REVERSE PROPORTION*
muminat

9514 1404 393

Answer:

  33.3%

Step-by-step explanation:

The selling price of £42 is (1 +40%) times the total purchase price.

  1.40 × purchase price = £42

  purchase price = £42/1.40 = £30

The total profit is 40% of this, so is ...

  £30 × 40% = £12

The purchase price of the skirt is ...

  total cost - glove cost = skirt cost = £30 -3 = £27

The profit on the skirt is ...

  total profit - glove profit = skirt profit = £12 -100% × £3 = £9

Then the percentage profit on the skirt is ...

  skirt profit % = skirt profit / skirt cost × 100% = £9/£27 × 100% = 33.3%

The percentage profit on the cost of the skirt was 33.3%.

5 0
2 years ago
5a - 7 = 0.1a - 0.14
DIA [1.3K]

Answer: a=1.4

Step-by-step explanation:

move the 0.1a to the other and the 7 to the other side which will make the  7 positive and the 0.1a negative.

5a-0.1= 4.9a

-0.14+7=6.86

dive both sides by 4.9 and you get

a=1.4

6 0
9 months ago
Help me pleaseeee????!
Veseljchak [2.6K]
The answer is A because if u shift 4 units up then it's +4
7 0
3 years ago
The sum of two numbers is 15. The product of the two numbers is 36. What are the numbers? The larger number is . The smaller num
nikitadnepr [17]

Answer:

The numbers are 12 and 3.

Step-by-step explanation:

12+3=15

&

3×12= 36

:)

7 0
3 years ago
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Complete the table for the given rule
irinina [24]

Answer:

see explanation :)

Step-by-step explanation:

y = − x − 4

is in the slope-intercept form for a linear equation,  

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m = − 1  and  b = − 4 .


Ordered Pairs

x ... ... . . y

4 ... . − 8

2 ... . − 6

0 ... . − 4

− 2 . ...− 2

− 4 ... . . 0

7 0
2 years ago
Read 2 more answers
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