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gayaneshka [121]
3 years ago
15

250 people attended the first showing of a play. Of the 250, 75 were adults above the age of 40, 50 were between the ages of 20

& 40, and 25 were teenagers ages 13-19. What percentage of the attendees were children 12 and under?a) 35% b) 25% c) 60% d) 40%
Mathematics
2 answers:
HACTEHA [7]3 years ago
6 0
The answer is D) 40% because when you add the people who were already accounted for, it comes to 150, which is 60% of 250. So the remaining attendees, children 12 and under, makes up the rest of the 250, which was 40%.
NNADVOKAT [17]3 years ago
5 0

Answer: d) 40%

Step-by-step explanation:

Given, Total people attended the first showing of a play = 250

Number of adults above the age of 40= 75

Number of people between the ages 20 & 40 = 50

Number of teenagers ages 13-19 =25

Total people other than children ( age of 12 and under) = 75+50+25 =150

Then, the number of children ( age of 12 and under) = 250-150=100

Now , the percentage of the attendees were children 12 and under will be

\dfrac{\text{Number of children}}{\text{Total attendees}}\times100\\\\=\dfrac{100}{250}\times100\\\\=40\%

Hence, the correct answer is d) 40%.

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natta225 [31]
3,510



913=117
11730=3,510

3,510
3 0
3 years ago
I have corner points of:
WARRIOR [948]
The points you found are the vertices of the feasible region. I agree with the first three points you got. However, the last point should be (25/11, 35/11). This point is at the of the intersection of the two lines 8x-y = 15 and 3x+y = 10

So the four vertex points are:
(1,9)
(1,7)
(3,9)
(25/11, 35/11)

Plug each of those points, one at a time, into the objective function z = 7x+2y. The goal is to find the largest value of z

------------------

Plug in (x,y) = (1,9)
z = 7x+2y
z = 7(1)+2(9)
z = 7+18
z = 25
We'll use this value later. 
So let's call it A. Let A = 25

Plug in (x,y) = (1,7)
z = 7x+2y
z = 7(1)+2(7)
z = 7+14
z = 21
Call this value B = 21 so we can refer to it later

Plug in (x,y) = (3,9)
z = 7x+2y
z = 7(3)+2(9)
z = 21+18
z = 39
Let C = 39 so we can use it later

Finally, plug in (x,y) = (25/11, 35/11)
z = 7x+2y
z = 7(25/11)+2(35/11)
z = 175/11 + 70/11
z = 245/11
z = 22.2727 which is approximate
Let D = 22.2727

------------------

In summary, we found
A = 25
B = 21
C = 39
D = 22.2727

The value C = 39 is the largest of the four results. This value corresponded to (x,y) = (3,9)

Therefore the max value of z is z = 39 and it happens when (x,y) = (3,9)

------------------

Final Answer: 39

7 0
3 years ago
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Elodia [21]
5/6 of the boys brought their lunch.



In order to determine the answer you need to divide 5/9 by 2/3 in which will give you 5/6.
4 0
3 years ago
suppose that an 1994 finline produce 18.036 million lb of weed. The total World production that your total to 137 million lb of
Degger [83]
One may note the country's name is not finline or Finley, is Finland.

so, in short, if we take 137 to be the 100%, how much is 18.036 in percentage off of it?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
137&100\\
18.036&x
\end{array}\implies \cfrac{137}{18.036}=\cfrac{100}{x}\implies x=\cfrac{18.036\cdot 100}{137}
7 0
3 years ago
In a class, 42 students, there are 8 more boys than girls write and solve a system of 3 equations
zhenek [66]

Answer:

x = 17

Step-by-step explanation:

x + x + 8 = 42     because x = boys and x + 8 = girls

2x = 34      because 2x = 42 - 8

x = 17            



i hope this helps!  you don't need the 2x = 42 - 8 to be an equation      ;)

8 0
3 years ago
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