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Delvig [45]
3 years ago
10

Marla swims twice a week. her equipment cost her $32.85 and she has a membership to the pool for $35 plus #3.50 per visit. she c

an walk to the pool, so transportation is free. how much will swimming cost her for the year?
Mathematics
1 answer:
evablogger [386]3 years ago
3 0
Around $634.85 per year

Because:

$32.85+$35(12 months)+$3.5(52 weeks in a year)= Total cost per year
                   $420                       $182

        $32.85 + $420 + $182 = $634.85 per year
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12.4. Measure of Dispersion<br>2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.​
Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given sample size 'n' = 5

Given data  4, 6,8,10,12

Mean = \frac{4+6+8+10+12}{5} = 8

Mean of the sample x⁻ = 8

Standard deviation of the sample

                  S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}

<u><em>Step(ii)</em></u>:-

Given data

x          :         4      6       8       10      12

x-x⁻      :      4 - 8   6-8   8-8    10-8    12-8

(x-x⁻)   :        -4      -2     0          2        4

(x-x⁻)²  :        16     4       0         4        16  

 

  S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}

  S.D = \sqrt{\frac{16+4+0+4+16}{4}}

 S.D = √10 = 3.16227

<u><em> Final answer</em></u>:-

The standard deviation = 3.16227

8 0
2 years ago
Help me with this!! I will mark Brainliest ❤️
soldi70 [24.7K]
28 because it is qhal
5 0
3 years ago
What is 50/90 in simplest form fraction
lisabon 2012 [21]
5/9, is what it should be
8 0
3 years ago
a table was listed $400 after discount.And the net price was $450.what is the rate discount and marked price?​
Rama09 [41]

Answer:

Your answer

Discount rate = 11.11%

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

5 0
3 years ago
Find the selling price cost to the store: $50 markup:10%
Goryan [66]

Answer:

$55

Step-by-step explanation:

I am not good at explaining, but, 10% of 50 is 5.

Marking up means the price goes up.

So if 10% of 50 is 5.

50 + 5 = new price

50 with a mark up of 10% = 55

7 0
3 years ago
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