Dorothy sells glass frames at half the price that Jemma sells them. Jemma sells the glass frames at 5 dollars each, selling twice as many frames as Dorothy does. If Jemma sold 400 frames, how much did they make together in total from the sale of the glass frames?
If Jemma sold 400 glasses frames at $5 each, she made 400*$5 = $<<400*5=2000>>2000
Jemma sold twice as many frames as Dorothy, meaning Dorothy sold 400/2 = 200 frames.
If Dorothy sold her glasses frames at half the price that Jemma sold hers, then it means she sold her glasses frames at $5/2 = $<<5/2=2.5>>2.5 per glasses frame.
In total, Dorothy made $2.5*200 = $<<2.5*200=500>>500 from the sale of her glasses frames.
Together, they made $2000+$500 = $<<2000+500=2500>>2500 from the sale of the glasses frames.
#### 2500