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andre [41]
3 years ago
12

A survey found that women’s heights are normally distributed with mean of 63.7 in. and standard deviation 3.8 in. The survey als

o found that men’s heights are normally distributed with mean 68.7 in. and standard deviation 3.4 in. Consider an executive jet that seats six with a doorway height of 55.9 in
Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

.

Step-by-step explanation:

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Find the markup and the cost of the following item. Round answers to the nearest cent.
marysya [2.9K]

Answer:

1st question: M=22.62 while C=75.38

2nd question: M=.22 while C=1.97

Step-by-step explanation:

If a mirror costing x dollars is marked up 30%, then we have to find x such that 30%x+x is 98 dollars.

We are solving:

.3x+x=98

Combine like terms:

1.3x=98

Divide both sides by 1.3:

x=75.38

M=98-75.38=22.62

C=75.38

So M=22.62 while C=75.38.

If ream of paper cost x and is marked up 11%, then we have to find x such that 11%x+x is 2.19.

We are solving:

.11x+x=2.19

1.11x=2.19

x=1 97

M=2.19-1.97=.22

So M=.22 while C=1.97

5 0
3 years ago
Karen is a software saleswoman. Her base salary is $2100, and she makes an additional $50 for every copy of English is Fun she s
Shalnov [3]

Karen has a base salary that is $2100 and does not depends on how many copies she sells.

Additional to the base salary, she gets $50 for each copy she sells, so we can write this additional salary as 50*N, being N the number of copies she sells.

Then, we can write the total pay P as:

P=2100+50N

Then, if N=22, we can calculate the total pay as:

P(22)=2100+50\cdot22=2100+1100=3200

Answer:

The equation relating P and N is P=2100+50N.

The total pay when she sells 22 copies is $3,200.

4 0
1 year ago
70 is 25% of what number
Rina8888 [55]
I hope this helps you



70=?.25%


70=?.25/100


70=?.1/4


?=280
3 0
3 years ago
2) Jarrah needs no less than $159 to purchase a new guitar. He already has $38 in his savings account. He
aleksandr82 [10.1K]

Answer: Jarrah has to rake 25 bags.

Step-by-step explanation: Jarrah

Jarrah needs to get $159 dollars, right? Well since he already has $38, we just need to subtract 159 and 38. 159-38 is 121. (121 is how much heneeds  )Each bag raked costs $5, and 5 can't go into 121, so it's best to have more than less. Multiply 5 and 25, and you will get $125. That is more than enough, you cannot do 5x24 because it would be 120, which is too low. Therefore, Jarrah needs to rake 25 bags.

7 0
2 years ago
How to didvie $50 in the ratio of 2:3
Rama09 [41]
50 divided 2/3

50 x 3/2 = 150/2

= 75
5 0
3 years ago
Read 2 more answers
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