Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
5. Divide Integers
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Exercise 9 Page 247

Substitute 12 for r and -4 for s 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.

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Practice makes perfect
To evaluate the given expression for r=12 and s=-4, first, we should substitute these values into the expression.
r Ă· s
12 Ă· ( -4)
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 one number is positive and one number is negative, so the quotient will be negative.
12Ă· (-4)
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We can verify this using a calculator.