Photon336
At the city museum, child admission is
$5.70
and adult admission is
$9.70
. On Monday,
163
tickets were sold for a total sales of
$1277.10
. How many adult tickets were sold that day?

Question

Photon336
At the city museum, child admission is 
$5.70
 and adult admission is 
$9.70
. On Monday, 
163
tickets were sold for a total sales of 
$1277.10
. How many adult tickets were sold that day?

flvskidd · Answer

Can you help me with one more?

photon336 · Answer

A = number of adult tickets 
C = number of child tickets 

You need to make two equations for this again. 

$$5.70(C)+9.70(A) =1277.10$$

$$A+C = 163 $$ 

then solve these two by substitution

flvskidd · Answer

gotcha one sec

flvskidd · Answer

I got 82.9 but I know it's wrong

photon336 · Answer

yeah that would be wrong because remember # of tickets has to be a whole number.

photon336 · Answer

163-A = C 

Solve the second equation for A. 

5.70(163-A)+9.70(A) = 1277.10

flvskidd · Answer

I got 87 and it was right. Thank you!

photon336 · Answer

yes that's it do you know why this is the answer?

flvskidd · Answer

why?