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vladimir2022 [97]
3 years ago
7

Restating the conditions of problem 1, the cost to buy t-shirts is $5.00 for the first 10 shirts, $4.00 for each additional shir

t up to 50, and $3.00 for each shirt above 50. if you purchase 100 shirts, what is the average cost per shirt?
Mathematics
2 answers:
Aleks [24]3 years ago
6 0
5x10 + 4x40 + 3x50 = 50 + 160 + 150 = 360
360/100 = 3.6
AVG cost / shirt is $3.6
monitta3 years ago
6 0

Answer:

3.6

Step-by-step explanation:

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iVinArrow [24]

Answer:

34.84

Step-by-step explanation:

5.2 times 6.7= 34.84

5 0
2 years ago
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What is -a-2 if a = -5?
Vladimir79 [104]

Answer:

3

Step-by-step explanation:

-(-5) -2

5 - 2

3

3 0
3 years ago
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Find the least common denominator of the two fractions 3/4 over 1/6?
leva [86]

Answer:

(2/12 & 9/12)

Step-by-step explanation:

12 is the least common denominator for the fractions, so they must be rewritten to have the same denominator, but hold the same value.

( not written by me )

8 0
3 years ago
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He takes a random sample of 49 recent charterholders and computes a mean salary of $172,000 with a standard deviation of $35,000
uysha [10]

Answer:

the 90% of confidence intervals for the average salary of a CFA charter holder

 (1,63,775 , 1,80,000)

Step-by-step explanation:

<u>Explanation</u>:-

random sample of n = 49 recent charter holders

mean of sample (x⁻) =  $172,000

standard deviation of sample( S) = $35,000

Level of significance α= 1.645

<u> 90% confidence interval</u>

(x^{-} - Z_{\alpha } \frac{s}{\sqrt{n} } , x^{-} + Z_{\alpha } \frac{s}{\sqrt{n} })

(172000 - 1.645 \frac{35000}{\sqrt{49} } , 172000 +1.645 \frac{35000}{\sqrt{49} })

on calculation , we get

(1,63,775 , 1,80,000)

The mean value lies between the 90% of confidence intervals

(1,63,775 , 1,80,000)

4 0
3 years ago
Rates and ratios simalar
Alex777 [14]
Rate is closer to a constant pattern , example: I'm walking at a rate of 2 miles an hour.

Ratio is related to the proportion of two or more objects, example: The ratio for a perfect tang juice is 1 packet of tang dust thingy for 1.5 liters of water.

Hope it helps :)
4 0
3 years ago
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