Posted by 111 on Saturday, October 16, 2010 at 9:49pm.
roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many tickets did roberta sell?

MATH  Jen, Saturday, October 16, 2010 at 9:51pm
She sold 50 tickets. You already said that.

MATH  Henry, Sunday, October 17, 2010 at 6:22pm
XAdult tickets,
(x + 10) Student tickets.
x + (x + 10) = 50 tickets,
2x + 10 = 50,
2x = 50  10,
2x = 40,
x = 2o.
(x + 10) = 20 + 10 = 30.
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