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kondor19780726 [428]
3 years ago
11

A department store is having a 15% of sale on all winter coats you purchase a winter coat for 275. With 7.25% sale tax how much

taxes will you pay
Mathematics
1 answer:
yuradex [85]3 years ago
8 0
Sale price for coat =
275 x 0.85 (decimal multiplier for 15% decrease) = £233.75
£233.75 x 1.0725 (decimal multiplier for 7.25% increase) = £250.70
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The seasonal output of a new experimental strain of pepper plants was carefully weighed. The mean weight per plant is 15.0 pound
DanielleElmas [232]

Answer:

There are 118 plants that weight between 13 and 16 pounds

Step-by-step explanation:

For any normal random variable X with mean μ and standard deviation σ : X ~ Normal(μ, σ)  

This can be translated into standard normal units by :  

Z = \frac{(X - \mu)}{\sigma}

Let X be the weight of the plant  

X ~ Normal( 15 , 1.75 )  

To find : P( 13 < X < 16 )  

= P(\frac{( 13 - 15 )}{1.75} < Z < \frac{( 16 - 15 )}{1.75})

= P( -1.142857 < Z < 0.5714286 )  

= P( Z < 0.5714286 ) - P( Z < -1.142857 )  

= 0.7161454 - 0.1265490  

= 0.5895965  

So, the probability that any one of the plants weights between 13 and 16 pounds is 0.5895965  

Hence, The expected number of plants out of 200 that will weight between 13 and 16 = 0.5895965 × 200

                                            = 117.9193  

Therefore, There are 118 plants that weight between 13 and 16 pounds.

4 0
3 years ago
Please Help!<br> Solve this system of equations <br><br> { 1/2x+6y+2<br> y=x+15
REY [17]

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4 0
3 years ago
5 + (-3) is units from 5 in which direction
Ymorist [56]

Answer:

Step-by-step explanation:

Starting at 5 on the number line, 5 + (-3) is 3 units to the left of 5; that is, you are at 2 on the number line.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

3 0
4 years ago
Please help me im being timed-
miskamm [114]
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and group them in pairs
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Hope that help sorry if it doesn't make sense.. :( <3
4 0
3 years ago
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