Any Math Wiz here? Help please..?

Question

3rd question... Please help me again... when you answer all my questions, i'm actually studying how it has been done so please help me.

Q: A party of 30 people go to the theatre. The seats cost $9 for an adult and $5 for a child. There are n adults in the party.

(a) Write down in terms of n:

i) The total cost for the adults.
ii) The number of children in the party.
iii) The total cost for the children.
iv) The total cost of the visit to the theatre.

(b) The total cost of the trip is $174.

i) Write down an equation in n for the total cost of the trip.
ii) Solve this equation to find n.
iii) How many children are there in the party?


-This is the last one.. please help me answer it. Thanks in advance for all the people who will answer it. It's very much appreciated.

To all answerers, if you don't want to answer it just leave it alone. Please don't say anything that's gonna hurt the feelings of the people who asks. If we know the answer or if we know how to answer this, we'll not ask such questions.

>>giraffe, i'm asking the people around the world who's willing to answer my question. not only the people in the UK.

Answer 1

a)

i) 9n
ii) 30-n
iii) 5*(30-n)
iv) 9n + 5*(30-n)

b)

i) 9n + 5*(30-n) = 174
ii) 9n + 5*(30-n) = 174
9n +150-5n = 174
9n-5n = 174-150
4n = 24
n = 6
iii) = a ii) = 30-n = 30-6 = 24

Actually I quite enjoyed that... haven't done **** like that for 30 years!

EDIT: Which may explain why I got it wrong first time! LOL!

:-)

Answer 2

if n= no. of adults ,
m=no. of chidren

then n+m=30 {total no. of people who went to theater}
so n=30-m-------------------------(1)
total cost =$174

that means 9n+5m=174 --------------(2)

replacing the value of n in equation (2) we get

9(30-m) +5m=174
270-9m+5m =174
4m=270-174

no. of children is m= 96/4 = 24 is no. of children .
so no of adults is n= 30-m = 6. replacing values of m and n in (2)
i)cost for adults is 6*n=6*9 = $54 ;
ii)no. of children is m=24 i.e 4n .
(iii)total cost for children=24*5=120.
iv) total cost to the theater =174 = 29n .

the rest u find out u r self.

Answer 3

a)
i) $9n
ii) 30-n
iii) $5x(30-n)
iv) $9n + $5X(30-n)

b)
i) 9n + 5x(30-n)= 174
ii) => 9n + 150 - 5n = 174
=> 4n = 24
=> n = 6
iii) => Children = 30 - n
=> Children = 30 - 6
=> Children = 24

Answer 4

a)i)Total cost of adults=nx$9
ii)Number of children=30-n
iii)Total cost of children=$5(30-n)
iv)Total cost of the visit=$9nx$5(30-n)

b)$174=9nx5(30-n)
Sorry it's been a while, can't remember how to do this!

Answer 5

a(i) $9n
a(ii) 30 - n
a(iii) $5(30 - n)
a(iv) $9n + $5(30 - n)
b(i) $9n + $150 - $5n
b(iI) $4n + $150 = $174
$4n = $24
n = $24 / $4 = 6
b(iii) 30 - 6 = 24

Answer 6

(a)
i) 9n
ii) 30 - n
iii) 5(30 - n)
iv) 9n + 5(30 - n)

(b)
(i) 174 = 9n + 5(30 - n)
(ii)
174 = 9n + 5(30-n)
174 = 9n + 150 - 5n
174 = 4n + 150
24 = 4n
6 = n
(iii) 24

Answer 7

the beginning is kinda... obvious ^^; it is and i'm 13 so it's doable. ^_^ just keep at it till you get it.
to find out b ii just... figure it out! i can't take long if you put your mind to it ¬_¬

Answer 8

this is a saturday night in the uk and you are asking us for homework help do it yourself!

Answer 9

dont get us to answer your questions! do your own homework!

Answer 10

way too drunk to answer that......take your time and figure it for youself ya lazy bum