1.5 translating sentences into equations objective: to translate word sentences into equations. warm...
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1.5 Translating Sentences into Equations
• Objective: To translate word sentences into equations.
• Warm – up: – The sum of three and a number– Al earns (p + 3) dollars per hour. In 8 hours, how much
does he earn?– The quotient of n and three– Bob’s house is y years old. How old was it four years ago?– You buy (m + 5) bagels at 35 cents each. What is the cost?
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1.5 Translating Sentences into Equations
Addition• Some common words that
are used to describe addition are:– Sum of– Increased by– More than
Subtraction• Some common words that
are used to describe subtraction are:– Difference – Decreased by– Less than– Minus
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1.5 Translating Sentences into Equations
Multiplication• Some common words that
are used to describe multiplication are:– Product of– Times – Of
Division• Some common words that
are used to describe division are:– Quotient of – Divided by
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1.5 Translating Sentences into Equations
• Twelve more than the number p is 37.
• Eight is five less than twice the number r.
• Forty decreased by the number m is 24.5.
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1.5 Translating Sentences into Equations
• The quotient of the number b and 4 is eight.
• Three fourths of the number h is 192.
• The sum of one third of the number s and 12 is 23.
• The product of 7 and the sum of twice the number x and 3 is 126.
• The product of 58 and the number n is 1.
• The product of 12 and the quantity 1 less than the number d is 84.
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1.5 Translating Sentences into Equations
Use the figure and the information below it to write an equation involving x.
8
7 7 x x
x 16 40Perimeter =18 Perimeter = 56
x x
20 Perimeter = 60
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1.5 Translating Sentences into Equations
• A dozen eggs cost $1.19. (Cost of one egg)
• Nine days ago a new radio station had been on the air for 13 days. (Station’s age now)
• A rectangular floor is tiled with 928 square tiles. The floor is 32 tiles long. (Number of tiles in the width)
• Homework:– Pg. 20 – 22
Written Exercises #1 – 16, 17 – 29 odd