Translating Algebraic Expressions & Equations

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Presentation transcript:

Translating Algebraic Expressions & Equations

Algebraic Expressions -are number sentences that has at least one known number, one variable and one operation (x, /, -,+) DOES NOT HAVE AN EQUAL SIGN

How to Identify & Translate Expressions/Equations #1. Identify the known in the algebraic expression or equation #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know #4 Simplify if needed

Practice 1. 12 more than a number 2. The quotient of a number and 9 3. 4 times a number cubed decreased by 7 4. 15 less than a number squared

More Practice 5. 3 more than 5 times the number of dogs 6. The product of 5 and y added to 3 7. 4 times the number of cows plus 2 times the number of ducks

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.1 Page 14 Gavin agrees to buy a 6-month package deal of monthly gym passes and in turn receives a 15% discount. Write an algebraic expression to represent the total cost of monthly passes.

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.1 Page 14 Andre purchased 10 cans of tennis balls from an online store and received a 25% discount. Shipping cost $5.99. Write an algebraic expression to represent x the cost of each can.

Nadia and some friends went to a movie. Their total cost was $30 Nadia and some friends went to a movie. Their total cost was $30.24 which included taxes of $2.24. Write an algebraic expression to representation not including taxes.

1.1 Page 14 Practice 8-9 with your group READY SET GO! #1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.1 Page 14 Practice 8-9 with your group READY SET GO!

Algebraic Equations -are number sentences that has at least one known number, one variable and one operation (x, /, -,+) that uses an equal sign

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.3 Page 40 It cost Marcus an access fee for each visit to his gym, plus it cost him $3 in gas for each trip to the gym and back. This month it cost Marcus $108 for 6 trips to his gym. How much is Marcus’s access fee per visit?

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.3 Page 40 Rebecca bought x pairs of socks and received a 20% discount. Each pair of socks cost her $4.99. Her total cost without tax was $29.94. How many pairs of socks did Rebecca buy?

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.3 Page 40 Amelia and 2 of her friends went out to lunch. Each girl ordered exactly the same meal. The total cost was $55.08, which include an 8% tax. What was the price of each meal, not including tax?

#1. Identify the known in the algebraic expression #2 Connect key phrases with an operation #3 Rewrite the phrase using what you know 1.3 Page 40 Alan mowed the lawn and trimmed the hedges in his yard. The amount of time he spent trimming the hedges was 1/3 the amount of time it took him to mow the lawn. If it took him 1 hour and 15 minutes to mow the lawn, how long did it take him to trim the hedges?