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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

3. Solving Two-Step Equations

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Exercise 8 Page 143

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.

6.2

Practice makes perfect

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 both numbers are negative, so the quotient will be positive.

- 18.6 ÷ (- 3)

a÷ b=a/b

- 18.6/- 3

- a/- b=a/b

18.6/3

Calculate quotient

6.2

We can verify this using a calculator.

Subchapter links

Try It p.140-141

Self-Assessment for Concept & Skills p.141

Self-Assessment for Problem Solving p.142

Review & Refresh p.143

Concept, Skills, & Problem Solving p.143-144