Lesson 16
Dividing Rational Numbers
Problem 1
Find the quotients:
- \(24 \div \text-6\)
- \(\text-15 \div 0.3\)
- \(\text-4 \div \text-20\)
Solution
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Problem 2
Find the quotients.
- \(\frac25 \div \frac34\)
- \(\frac94 \div \frac {\text{-}3}{4}\)
- \(\frac {\text{-}5}{7} \div \frac {\text{-}1}{3}\)
- \(\frac {\text{-}5}{3} \div \frac16\)
Solution
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Problem 3
Is the solution positive or negative?
- \(2\boldcdot x=6\)
- \(\text-2\boldcdot x=6.1\)
- \(2.9 \boldcdot x = \text-6.04\)
- \(\text-2.473\boldcdot x = \text-6.859\)
Solution
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Problem 4
Find the solution mentally.
- \(3 \boldcdot \text-4 = a\)
- \(b \boldcdot (\text-3) = \text-12\)
- \(\text- 12 \boldcdot c = 12\)
- \(d \boldcdot 24 = \text-12\)
Solution
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Problem 5
Find the products.
- \((100) \boldcdot (\text-0.09)\)
- \((\text-7) \boldcdot (\text- 1.1)\)
- \((\text-7.3) \boldcdot (5)\)
- \((\text-0.2) \boldcdot (\text-0.3)\)
Solution
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(From Unit 7, Lesson 14.)Problem 6
Which graphs could not represent a proportional relationship? Explain how you decided.
Solution
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(From Unit 5, Lesson 7.)