Posted by 123ABC on Monday, October 18, 2010 at 12:16am.
Roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many student tickets did Roberta sell?
From this result, if the total cost of a student ticket was threefourths the cost of an adult ticket, and Roberta collected a total of 212.50, what was the total cost of a student ticket?

Algebra 1 PLEASE help  Jen, Monday, October 18, 2010 at 12:23am
30x+20y=212.50
x=3/4y
20(3/4y)+20y=212.5
Go from there, and when you solve for y, put that back in the original equation at the top for x.

Algebra 1 PLEASE help  123ABC, Monday, October 18, 2010 at 12:29am
what does x stand for and what does y stand for?

Algebra 1 PLEASE help  Jen, Monday, October 18, 2010 at 12:31am
x=student tickets, y=adult tickets

Algebra 1 PLEASE help  123ABC, Monday, October 18, 2010 at 12:39am
okay.. but...20(3/4y)+20y=212.5 ... when u solve this we get a decimal... and is this equation to find the COST of a student ticket...
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