Basic Letters Represent Numbers Algebra

Choose the correct algebraic expression for the following statement. 50 more than w

Choose the correct algebraic expression for the following statement. Subtract b from 40

Choose the correct algebraic expression for the following statement. c less than 25

Choose the correct algebraic expression for the following statement. 5 groups of m

6 more than twice x can be written as (a)  

• 2x + 6

• 6x + 2

• 2x + 6x

• 6 + x

• 1/2x + 6

Match the following statements with the correct algebraic expression.

• 20/p

• Write an algebraic expression for: the quotient of 20 and p

• 20+p

• Write an algebraic expression for: the difference of 20 and p

• 20-p

• Write an algebraic expression for: the product of 20 and p

• 20p

• Write an algebraic expression for: the sum of 20 and p

What is the algebraic expression for                  "the sum of n and 9"?

• n - 9

• n + 9

• n/9

• 9n

What is an algebraic expression for "the difference of r and 3"?

• r/3

• r + 3

• r - 3

• 3r

Write an expression to represent "10 less than x cubed"

Mathematical Equivalence

ON

A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable and write an expression to represent the total cost of hiring a plumber.

​ (a)   ​ (b)  

• h = hours (of work)

• 40h + 50

• 50v + 40

• 50h + 40

• 40v + 50

• v = visits