Elliott has some yarn that she wants to use to make hats and scarves. Each hat uses 0.20.20, point, 2 kilograms of yarn and each scarf uses 0.10.10, point, 1 kilograms of yarn. Elliott wants to use twice as much yarn for scarves as for hats, and she wants to make a total of 202020 items. Let hhh be the number of hats Elliott makes and sss be the number of scarves she makes. Which system of equations represents this situation?