At the city museum, child admission is $6.40 and adult admission is $9.50. On Thursday, 151 tickets were sold for a total sales of $1239.20. How many adult tickets were sold that day?

Question

anonymous · Answer

Let's have x be the number of children tickets and 2x will be the adults. Now we can set up the following equation:
5.4x+8.9(2x)=626.4
Expand this out:
5.4x+17.8x=626.4
Combine like terms:
23.2x=626.4
Divide both sides by 23.2 to get:
x=27 
There we go, 
27 children tickets were sold.

sushi121212 · Answer

The answer is 88. You have to set the tickets equal to each other:

a=adults
c=children

6.40c+9.50a=1239.20
c+a=151

Then, you have to use substitution  or elimination:

-6.40 x c+a=151 ( everything gets multiplied into everything )

 6.40c+9.50a=1239.20
-6.40c-6.40a=966.4
______________________   (subtract)

3.10a = 272.8
_____     ______
3.10        3.10

a=88

That means that there were 88 adult tickets purchased.

anonymous · Answer

LOL You got the adult tickets and i got the children tickets

sushi121212 · Answer

Haha, that's funny! What a coincidence!