Exercise 32 Page 249

Substitute -4 for s and -6 for t 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 s=-4 and t=-6, first, we should substitute these values into the expression and simplify.

s+t/5

SubstituteII

s= -4, t= -6

-4+( -6)/5

AddTerms

Add terms

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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 (+)÷(+)=(+) & (+)÷(-)=(-) (-)÷(-)=(+) & (-)÷(+)=(-) In our case one number is positive and one number is negative, so the quotient will be negative.

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MoveNegNumToFrac

Put minus sign in front of fraction

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CalcQuot

Calculate quotient

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We can verify this using a calculator.