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anyanavicka [17]
3 years ago
9

In an office building, an elevator has a maximum carrying capacity of 2,700 pounds. Based on the average weight (180 pounds male

) (150 pounds female) how many males and females can fit on the elevator.

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> the number of males on the elevator

y ----> the number of females on the elevator

we know that

The inequality that represent this situation is

180x+150y\leq 2,700

The solution of the inequality is the shaded area below the solid line 180x+150y=2,700

The slope of the solid line is negative

The y-intercept of the solid line is (0,18)

The x-intercept of the solid line is (15,0)

see the attached figure

The solution is the triangular shaded area

The maximum number of females is 18 (when the number of males is zero)

The maximum number of males is 15 (when the number of females is zero)

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Tyler runs 8 2/3 miles in 4/3 of an hour. How long does it take each of them to run 10 miles?
adelina 88 [10]

Answer:

It takes Tyler 65 minutes to run 10 miles.

Step-by-step explanation:

First you have to figure out what Tyler's mph is, so you divide 8  2/3 by 4/3=6.5. Then you multiply by 10 get how long it takes him to run 10 miles.

(hope this helps!)

7 0
3 years ago
The Empire State Building is 1,454 feet tall (if you include the lightning rod). If a piece of gum is dropped from the top, how
lana66690 [7]

gravity is 32.17 ft/sec

1454 ÷ 32.17 = 45.20 seconds = answer

3 0
3 years ago
The CEO of a large corporation asks his Human Resource (HR) director to study absenteeism among its executive-level managers at
Fynjy0 [20]

Answer:

Following are the answer to this question:

Step-by-step explanation:

Given:

n = 30 is the sample size.  

The mean  \bar X = 7.3 days.  

The standard deviation = 6.2 days.  

df = n-1  

     = 30-1 \\      =29

The importance level is \alpha = 0.10  

The table value is calculated with a function excel 2010:

= tinv (\ probility, \ freedom \ level) \\= tinv (0.10,29) \\ =1.699127\\ =  t_{al(2x-1)}= 1.699127

The method for calculating the trust interval of 90 percent for the true population means is:

Formula:

\bar X - t_{al 2,x-1} \frac{S}{\sqrt{n}} \leq \mu \leq \bar X+ t_{al 2,x-1}   \frac{S}{\sqrt{n}}

=\bar X - t_{0.5, 29} \frac{6.2}{\sqrt{30}} \leq \mu \leq \bar X+ t_{0.5, 29}   \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 \frac{6.2}{\sqrt{30}}\leq \mu \leq7.3 +1.699127 \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 (1.13196)\leq \mu \leq7.3 +1.699127  (1.13196) \\\\=5.37 \leq \mu  \leq 9.22 \\

It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.

7 0
3 years ago
HELP!! WILL GIVE BRAINLIEST AND LOTS OF POINTS!!
NikAS [45]

1. B is your answer

Explanation: The distribution is not the same, as they are not all one number (for example, 10, which is the majority) They are also concentrated towards the middle, as seen that two of the 3 that have a 10 is towards the middle.

2. C is your best answer

Explanation: This is a sample, and not the whole population, and so only those who wish to answer's responses would show up, leading to only certain amounts of mileage given. If there was a set amount with no choices, in which people HAD to take it, then the results would have been different)

hope this helps

7 0
4 years ago
Read 2 more answers
- 8x + 9y + 92 = -2<br> 8x + y + 4z = 3<br> - 8x + 8y + 9z = 7
Lady_Fox [76]

Answer:

- 8x + 8y + 9z = 7 i think that is the answer of this question

8 0
3 years ago
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