MEDAL REWARD :)
At the city museum, child admission is $5.80 and adult admission is $9.60 . On Monday, twice as many adult tickets as child tickets were sold, for a total sales of $675.00 . How many child tickets were sold that day?

Question

MEDAL REWARD :)
At the city museum, child admission is $5.80 and adult admission is $9.60 . On Monday, twice as many adult tickets as child tickets were sold, for a total sales of $675.00 . How many child tickets were sold that day?

nurali · 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:
5.8x+9.6(2x)=675
Expand this out:
5.8x+19.2x=675
Combine like terms:
25x=675

Divide both sides by 25 to get:
x=27 
There we go, 
27 children tickets were sold.

anonymous · Answer

awesome thank you !!

anonymous · Answer

What about this one? 

A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the high-quality version is 4.7 MB. Yesterday, there were 1260 downloads of the song, for a total download size of 4500 MB. How many downloads of the high-quality version were there?

nurali · Answer

Let x= number of standard versions downloaded
1260-x = number of HQ versions downloaded
2.9x+4.7(1260-x)=4500( in MB )
2.9x+5922-4.7x+=4500
2.8x=5922-4500
2.8x=1422
x=508
1260-508=752
There were 752 downloads of the HQ version