Jessica and josh are selling entertainment books to raise money for the art room at their school. one book sells for $20. jessica received the prize for selling the most books in school. jessica sold 19 times more books than joseph. together they sold 200 books. how many did each of them sell

Josh sold 16 books and Jessica sold 240 books

Step-by-step explanation:

Given: Jessica sold 15 times more books than Josh.

           Together they sold 256 books

To Find : How many did each one of them sell?

Solution:

Let Jessica sold x books

Let Josh sold y books.

Since we are given that Jessica sold 15 times more books than Josh.

⇒x=15y --a

We are also given that  Together they sold 256 books.

⇒x+y=256 --b

Using substitution method

Put value of x from equation a in equation b

⇒15y+y=256

⇒16y=256

⇒

⇒

Thus Josh sold 16 books

Jessica sold books = 15y = 15*16=240

Hence  Josh sold 16 books and Jessica sold 240 books

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step-by-step explanation: