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bazaltina [42]
3 years ago
15

The total for shipping charges for the 8 full boxes was $54.75 more than the total for shipping charges for the partially filled

boxes. Each of the partially filled boxes costs $12.25 to ship. What was the cost to ship 1 full box?
Mathematics
1 answer:
lakkis [162]3 years ago
4 0

Answer:

Step-by-step explanation:

536 because it is correct

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The demand for a daily newspaper at a newsstand at a busy intersection is known to be normally distributed with a mean of 150 an
AURORKA [14]

Answer:

171 newspapers.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 150, \sigma = 25

How many newspapers should the newsstand operator order to ensure that he runs short on no more than 20% of days

The number of newspapers must be on the 100-20 = 80th percentile. So this value if X when Z has a pvalue of 0.8. So X when Z = 0.84.

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

0.84 = \frac{X - 150}{25}

X - 150 = 0.84*25

X = 171

So 171 newspapers.

4 0
3 years ago
Can someone please help me!!!
egoroff_w [7]
The correct answer is the first one(a): To get the system B,..., the first equation multiplied by 4...

Explanation:

1. Let us first multiple the first equation in System A with 4, we would get:
4(2x - y) = 4 * 3

=> 8x - 4y = 12 --- (A)

Now add the equation (A) and the second equation of System A:

8x  - 4y = 12
3x + 4y = 10
------------------
11x = 22 

Hence,
System B:
2x - y = 3
11x = 22

-i
5 0
3 years ago
Read 2 more answers
Write an equation of the line below.
iVinArrow [24]

(0,-2)

(5,-7)

hope it helps u

5 0
2 years ago
Read 2 more answers
I will give brainliest. Combine the like terms to create an equivalent expression: −5j+(−2j)+3
neonofarm [45]

Answer:

-7j +3

Step-by-step explanation:

-5j -2j +3

-7j +3

like terms are combined. combine the js

8 0
3 years ago
Read 2 more answers
What is the slope for this graph?*<br><br><br><br> (3,2)<br> |(1,2)<br> (-2,1)<br> (-1,2)
Ad libitum [116K]

Answer:

the slope is 0

Step-by-step explanation:

4 0
2 years ago
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