28. The United States Postal Service delivers many packages every day. A postal carrier recorded the number of packages he deliv
ered each day for 92 days. Each day had a unique number of packages delivered (no doubles). Here are the results:
Mean: 110
Standard Deviation: 24.25
Q1: 75
Median: 98
Q3: 122
How many days did he deliver fewer than 75 packages?
(A) 7
(B) 23
(C) 25
(D) 35
(E) 46
Mean: 110
Standard Deviation: 24.25
Q1: 75
Median: 98
Q3: 122
How many days did he deliver fewer than 75 packages?
(A) 7
(B) 23
(C) 25
(D) 35
(E) 46
2 answers:
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Let x represent number of bracelets and y represent number of necklaces.
We have been given that a jeweler made 7 more necklaces than bracelets. This means that number of necklaces will be . We can represent this information in an equation as:
We have been given that the amount of gold in each bracelet is 6 grams, so amount used for x bracelets would be grams.
We are also told that the amount of gold in each necklace is 16 grams, so amount used for y necklaces would be grams.
Since the jeweler used 178 grams of gold, so we will equate the amount of gold used in x bracelets and y necklaces with 178 as:
Therefore, our required system of equations would be:
Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
