SOLUTION: Hi, can you please help me solve this world problem for the second part of my homework? The boy scouts sold $894 worth of tickets for their spaghetti dinner. Adult tickets cost

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Question 1084312: Hi, can you please help me solve this world problem for the second part of my homework?
The boy scouts sold $894 worth of tickets for their spaghetti dinner. Adult tickets cost $8 each and children’s tickets cost $5 each. If they sold 132 tickets, how many adult tickets and how many children’s tickets were sold?
a. Write a system of equations which represents this problem.
b. Use substitution to solve.
c. Clearly state the answer to the question.

Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
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Hi, can you please help me solve this world problem for the second part of my homework?
The boy scouts sold $894 worth of tickets for their spaghetti dinner. Adult tickets cost $8 each and children’s tickets
cost $5 each. If they sold 132 tickets, how many adult tickets and how many children’s tickets were sold?
a. Write a system of equations which represents this problem.
b. Use substitution to solve.
c. Clearly state the answer to the question.
~~~~~~~~~~~~~~~~~~~~~~~~~

Let "x" be the number of adult tickets.
Let "y" be the number of children's tickets.

Then 

 x +  y = 132,     (1)     and
8x + 5y = 894.     (2)


From equation (1), express x = 132 - y and substitute it into equation (2). You will get

8*(132-y) + 5y = 894.


It is a single equation for one unknown y. Simplify and solve it for y:

1056 - 8y + 5y = 894,

-3y = 894 - 1056,

-3y = -162  ---->  y = %28-162%29%2F%28-3%29 = 54.


So, 52 children's tickets were sold.


Then the number of adults tickets was 132 - 54 = 78.


Answer.  78 adult tickets and 54 children's tickets were sold.

Check.   78*8 + 54*5 = 894 dollars./  Correct !!

Solved.