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Serhud [2]
3 years ago
11

a store bought a diamond ring at a cost of 8000 and marked it up 25%.Tommy bought it and paid 15% sales tax.what was his total c

ost?
Mathematics
1 answer:
kirza4 [7]3 years ago
5 0
You do 8000×.25 to get 2000
then add 8000 to 2000 to get 10000
then multiply 10000 by .15 to get 1500
then add 10000 to 1500 to get your answer which is 11500
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What is the interquartile range of 45,60,40,90,60,50,75,120,90
puteri [66]
IQR = 40

1) Put the numbers in order: 40, 45, 50, 60, 60, 75, 90, 90, 120
2) Find the median: Median is 60 (the 2nd one)
3) Place parentheses around the numbers above and below the median. For easy identification of Q1 and Q3. (40, 45, 50, 60,) 60, (75, 90, 90, 120)
4) Find the Q1 and Q3. Q1 = median of the lower half of the data; Q3 = median of the higher half of the data. Q1 and Q3 have even sets so its median cannot be defined.
5) Had both sets contain odd sets, the median of Q1 is subtracted from the median of Q3 to get the IQR.

We can then use the Alternative definition of IQR.
IQR is the difference between the largest and smallest values in the middle 50% of a set data.

40, 45, 50, 60, 60, 75, 90, 90, 120

Middle 50% is 50, 60, 60, 75, 90; IQR = Largest value - smallest value;

IQR = 90 - 50 = 40



5 0
3 years ago
Solve for x <br><br> 3x-5=-x+3
sashaice [31]

Answer:

(3x - 5 = -x + 3) x = 2

Step-by-step explanation:

3x - 5 = -x + 3

3x = -x + (3 +5)

3x=-x + 8

(3x + x ) = 8

4x = 8

4/8 =2

x = 2

4 0
1 year ago
Suppose you have a 1/10 chance of winning with a scratch-off lottery ticket. If you buy 4 tickets, what is the probability of wi
xz_007 [3.2K]
1/10 chance on winning with 1 ticket...so winning with 4 tickets = 
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4 0
3 years ago
Read 2 more answers
Solve:
Murljashka [212]

Steps to solve:

x - 5/8 = 1/8

~Add 5/8 to both sides

x = 6/8 or x = 3/4

Best of Luck!

4 0
3 years ago
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Vedmedyk [2.9K]

Answer:

Sales Engineers. ...

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Securities, Commodities, and Financial Services Sales Agents. ...

Advertising Sales Agent. ...

Insurance Sales Agent. ...

Real Estate Brokers and Sales Agents. ...

Travel Agents.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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