Let x be the cost of dinner. Then 0.3x is the cost of lunch. Add up all the costs and set them equal to 872 136 + 210 + 500 + x + 0.3x = 872
846+ x + 0.3x=872
so will both xs be added together making it 1.3?
then i divide that?
I get $20 /: thats how I did it the first time.
that's what I got. what are you supposed to get?
Oh wait. I just put in the answer as $20.00 and got it right i forgot the .00 thank you so much!