Jacob and Joe are selling cheesecakes for a school fundraiser. Customers can buy New York style cheesecakes and strawberry cheesecakes. Jacob sold 6 New York style cheesecakes and 6 strawberry
cheesecakes for a total of $96. Joe sold 1 New York style cheesecake and 4 strawberry cheesecakes for
a total of $52. What is the cost each of one New York style cheesecake and one strawberry cheesecake?

Ashley read 27 books and her brother read 6 books

Step-by-step explanation:

Let the number of books Ashley read be x

Let the number of books her brother read be y;

If Ashley and her brother combined read a total of 33 books over the summer., then;

x + y = 33 1

If Ashley read three more than four time as many books as her brother, then;

x = 4y + 3 2

Substitute equation 2 into 1:

From 1:

x + y = 33

4y+3+y = 33

5y + 3 = 33

5y = 33-3

5y = 30

y = 30/5

y =  6

Get x;

Since x+y = 33

x + 6 = 33

x = 33-6

x = 27

Hence Ashley read 27 books and her brother read 6 books