LESSON Practice B Variables and Expressions

Name

Date

Class

LESSON Practice B 1-1 Variables and Expressions

Give two ways to write each algebraic expression in words.

1. 15 b

the difference of 15 and b

2.

_x__ 16

the quotient of x and 16

b less than 15

3. x 9

the sum of x and 9

x divided by 16

4. (2)(t)

the product of 2 and t

9 more than x

5. z 7

the difference of z and 7

2 times t

6. 4y

the product of 4 and y

7 less than z

4 times y

7. Sophie's math class has 6 fewer boys than girls, and there are g girls. Write an expression for the number of boys.

8. A computer printer can print 10 pages per minute. Write an expression for the number of pages the printer can print in m minutes.

g 6 10m

Evaluate each expression for r 8, s 2, and t 5.

9. st

10. r s

10

4

11. s t

7

12. r t

3

13. r ? s

16

14. t s

3

15. Paula always withdraws 20 dollars more than she needs from the bank.

a. Write an expression for the amount of money Paula withdraws if she needs d dollars.

b. Find the amount of money Paula withdraws if she needs 20, 60, and 75 dollars.

d 20

40 dollars; 80 dollars; 95 dollars

Copyright ? by Holt, Rinehart and Winston. All rights reserved.

4

Holt Algebra 1

Name

Date

Class

LESSON Practice B 1-1 Variables and Expressions

Give two ways to write each algebraic expression in words.

1. 15 b

the difference of 15 and b

2.

_x__ 16

the quotient of x and 16

b less than 15

3. x 9

the sum of x and 9

x divided by 16

4. (2)(t)

the product of 2 and t

9 more than x

5. z 7

the difference of z and 7

2 times t

6. 4y

the product of 4 and y

7 less than z

4 times y

7. Sophie's math class has 6 fewer boys than girls, and there are g girls. Write an expression for the number of boys.

8. A computer printer can print 10 pages per minute. Write an expression for the number of pages the printer can print in m minutes.

g 6 10m

Evaluate each expression for r 8, s 2, and t 5.

9. st

10. r s

10

4

11. s t

7

12. r t

3

13. r ? s

16

14. t s

3

15. Paula always withdraws 20 dollars more than she needs from the bank.

a. Write an expression for the amount of money Paula withdraws if she needs d dollars.

b. Find the amount of money Paula withdraws if she needs 20, 60, and 75 dollars.

d 20

40 dollars; 80 dollars; 95 dollars

Copyright ? by Holt, Rinehart and Winston. All rights reserved.

4

Holt Algebra 1

Name

Date

Class

LESSON Practice B 1-1 Variables and Expressions

Give two ways to write each algebraic expression in words.

1. 15 b

the difference of 15 and b

2.

_x__ 16

the quotient of x and 16

b less than 15

3. x 9

the sum of x and 9

x divided by 16

4. (2)(t)

the product of 2 and t

9 more than x

5. z 7

the difference of z and 7

2 times t

6. 4y

the product of 4 and y

7 less than z

4 times y

7. Sophie's math class has 6 fewer boys than girls, and there are g girls. Write an expression for the number of boys.

8. A computer printer can print 10 pages per minute. Write an expression for the number of pages the printer can print in m minutes.

g 6 10m

Evaluate each expression for r 8, s 2, and t 5.

9. st

10. r s

10

4

11. s t

7

12. r t

3

13. r ? s

16

14. t s

3

15. Paula always withdraws 20 dollars more than she needs from the bank.

a. Write an expression for the amount of money Paula withdraws if she needs d dollars.

b. Find the amount of money Paula withdraws if she needs 20, 60, and 75 dollars.

d 20

40 dollars; 80 dollars; 95 dollars

Copyright ? by Holt, Rinehart and Winston. All rights reserved.

4

Holt Algebra 1

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