Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 海瑟要缝制150个围裙，用于儿童乐团计划。她已经缝制了13个围裙，今天她缝制了三倍于昨天的围裙。如果她想明天缝制剩下所需围裙的一半，她应该缝制多少个围裙？


### Response:
 海瑟今天缝制了13 x 3 = <<13*3=39>>39个围裙。
总共缝制的围裙数量是13 + 39 = <<13+39=52>>52个。
海瑟还需要缝制150 - 52 = <<150-52=98>>98个围裙。
所以，她明天需要缝制的围裙数量是98/2 = <<98/2=49>>49个。