Question 949090
Jack and Jill are trying to figure out how much each movie ticket costs. Jack knows that the adult tickets are 2 times plus 1 more than the children tickets. Jill knows that they sold 45 adult tickets and 70 children tickets and made $525. How much is each ticket?
 I need to solve this with the systems of substitution. I need to know how to write 2 equations out so I can solve for x and y.
------
a = 2c+1
45a + 70c = 525
------
Substitute for "a" and solve for "c"::
45(2c+1) + 70c = 525
90c+45 + 70c = 525
160c = 480
c = 3 dollars (price of one child ticket)
----
Solve for "a"
a = 2c + 1
a = 6+1
a = 7 dollars (price of one adult ticket)
----------------------
Note: You could use x and y but your problem lends
itself better to using "a" and "c".
---------------------
Cheers,
Stan H.