He sum of two numbers is 8. the sum of the squares of the two numbers is 34.
vhat are the two numbers?

3 and 5

Step-by-step explanation:

Two equations:

x+y = 8

x² + y² = 34

x+y=8

x=8-y

(8-y)² + y² = 34

64 - 16y + y² + y² = 34

2y² - 16y + 30= 0

y² - 8y +15 = 0

(y-3)(y-5)=0

y can be 3 or 5,

The numbers can be 3 and 5

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation: