Glencoe Math: Course 2, Volume 1
GM
Glencoe Math: Course 2, Volume 1 View details
5. Divide Integers
Continue to next subchapter

Exercise 5 Page 246

Substitute 8 for x and -5 for y in the expression. When dividing real numbers, the quotient will be positive if the signs are the same and it will be negative if the signs are different.

4

Practice makes perfect
To evaluate the given expression for x=8 and y=-5, first, we should substitute these values into the expression and simplify.
xy Ă· (-10)
8( -5) Ă· (-10)
- 8* 5 Ă· (-10)
-40 Ă· (-10)
When dividing real numbers, the quotient will be positive if the signs are the same and it will be negative if the signs are different. cc Same Sign & Different Signs (+)Ă·(+)=(+) & (+)Ă·(-)=(-) (-)Ă·(-)=(+) & (-)Ă·(+)=(-) In our case both numbers are negative, so the quotient will be positive.
-40Ă· (-10)
4
We can verify this using a calculator.