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2-1 WRITING EQUATIONS Goals: Translate sentences into equations Translate equations into sentences

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Vocabulary Equation – a math statement that includes an equal sign

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Words that mean equals Is Is as much as Is the same as Is identical to

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Examples Translate each sentence into an equation. 1. The sum of six and a number t is twelve. 2. The difference between a number f and three is fifteen. 3. Five increased by the product of a number y and seven is nineteen. 4. The quotient of a number w and five decreased by four is zero.

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Examples 5. The product of six and a number g is the same as thirty-two. 6. Four times the sum of a number h and six is equal to fifty. 7. Seven plus the product of a number x and five is as much as ten. 8. The square of a number y plus two equals twenty-four.

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A.6c = d + 2 B.2c = d + 6 C.c = d + 2 D.c = 6(d + 2) Translate this sentence into an equation. A number c multiplied by six is equal to two more than d.

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Translate this sentence into an equation. Three less than a number a divided by four is seven more than 3 times b. A. B. C. D.

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A.A = + r 2 B.A = r 2 C.A = 2 r D.A = 2r + Translate the sentence into a formula. The area of a circle equals the product of and the square of the radius r.

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Examples Translate each equation into a sentence. 1. 6z – 15 = 45 2. y 2 + 3x = w 3. 25u 2 + 2 = 15

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A.Twelve minus four divided by b is negative one. B.Twelve less than four divided by b equals negative one. C.Four minus twelve divided by b equals negative one. D.Twelve divided by b minus four equals negative one. Translate the equation into a verbal sentence.

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A.Five plus a equals b squared plus one. B.Five times a equals twice b plus one. C.Five times a equals b squared plus one. D.The quotient of five and a equals b squared plus one. Translate the equation into a verbal sentence. 5a = b 2 + 1

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Practice Worksheet – “2-1 Skills Practice” #1-16

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Homework Pages 77-78 #1-8,15-18

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