Download presentation

Presentation is loading. Please wait.

Published byColten Wickham Modified over 3 years ago

1
NOTES # Writing algebraic expressions

2
WHAT OPERATION? Add Example: n + 6 N plus 6 The sum of n and 6 6 added to n N increased by 6 Subtract Example: n -6 N minus 6 The difference between n and 6 6 subtracted from n 6 less than n Multiply Example: 6n N time 6 The product of n and 6 6 multiplied by n Divide Example: n ÷6 N divided by 6 The quotient of n and 6 6 equal shares of n

3
Problem: Ms. Jensen likes to divide her class into groups of 2. Use mathematical symbols to represent all the students in her class. Solution: Let g represent the number of groups in Ms. Jensen's class. Then 2 · g, or 2g can represent "g groups of 2 students".

4
WRITE EACH PHRASE AS AN ALGEBRAIC EXPRESSION Phrase The sum of nine and eight The sum of nine and a number

5
WRITE EACH PHRASE AS AN ALGEBRAIC EXPRESSION Phrase 1) Nine increased by a number x 2) Fourteen decreased by a number p 3) Seven less than a number t 4) The product of 9 and number n 5) Thirty-two divided by a number y

6
WRITE EACH PHRASE AS AN ALGEBRAIC EXPRESSION Phrase Expression 1) Nine increased by a number x9 + x 2) Fourteen decreased by a number p14 - p 3) Seven less than a number tt - 7 4) The product of 9 and number n9n 5) Thirty-two divided by a number y32/y

7
WRITING EXPRESSIONS FROM WORD PROBLEMS A small company has $1000 to distribute to its employees as a bonus. How much money will each employee get? Let e represent the number of employees in the company. The amount of money each employee will get is represented by the following algebraic expression: 1000/e

8
EXAMPLE An electrician charges $45 per hour and spends $20 a day on gasoline. Write an algebraic expression to represent his earnings for one day. Let x represent the number of hours the electrician works in one day. The electrician's earnings can be represented by the following algebraic expression: 45x - 20

9
REVIEW

10
1. FIFTEEN LESS THAN TWICE A NUMBER A. 15 - 2x B. 2x + 15 C. 2x - 15 D. None of the above.

11
1. FIFTEEN LESS THAN TWICE A NUMBER A. 15 - 2x B. 2x + 15 C. 2x - 15 D. None of the above.

12
2. THREE TIMES A NUMBER, INCREASED BY SEVENTEEN A.3(a + 17) B.3a + 17 C.(17 + 3)a D.None of the above.

13
2. THREE TIMES A NUMBER, INCREASED BY SEVENTEEN A.3(a + 17) B.3a + 17 C.(17 + 3)a D.None of the above.

14
3. THE PRODUCT OF NINE AND A NUMBER, DECREASED BY SIX A.9(m - 6) B.6(9 - m) C.9m – 6 D.None of the above.

15
3. THE PRODUCT OF NINE AND A NUMBER, DECREASED BY SIX A.9(m - 6) B.6(9 - m) C.9m – 6 D.None of the above.

16
4. THIRTY DIVIDED BY SEVEN TIMES A NUMBER A.30 + 7n B.30(7n) C.7n/30 D.None of the above.

17
4. THIRTY DIVIDED BY SEVEN TIMES A NUMBER A.30 + 7n B.30(7n) C.7n/30 D.None of the above.

18
5. JENNY EARNS $30 A DAY WORKING PART TIME AT A SUPERMARKET. WRITE AN ALGEBRAIC EXPRESSION TO REPRESENT THE AMOUNT OF MONEY SHE WILL EARN IN D DAYS. A.30d B.30 + d C.30/d D.None of the above

19
5. JENNY EARNS $30 A DAY WORKING PART TIME AT A SUPERMARKET. WRITE AN ALGEBRAIC EXPRESSION TO REPRESENT THE AMOUNT OF MONEY SHE WILL EARN IN D DAYS. A.30d B.30 + d C.30/d D.None of the above

Similar presentations

OK

Translate Expressions SWBAT translate multistep word phrases to algebraic expressions; translate multistep algebraic expressions to word phrases.

Translate Expressions SWBAT translate multistep word phrases to algebraic expressions; translate multistep algebraic expressions to word phrases.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on cross-sectional study design Ppt on amplitude shift keying transmitter Ppt on guru granth sahib path Ppt on diode as rectifier diagram Ppt on product design Ppt on mohandas karamchand gandhi about Ppt on road accidents Ppt on standing order action Free ppt on minimum wages act 1948 Ppt on food processing technology