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Chapter 1: Q 177. (page 40)

Greg has nickels and pennies in his pocket. The number of pennies is seven less than twice the number of nickels. Let n represent the number of nickels. Write an expression for the number of pennies.

Short Answer

Expert verified

The algebraic expression is2n-7.

Step by step solution

01

Step 1. Given information. 

seven less than twice the number of nickels

02

Step 2. Substitute n for the number of nickels. 

7 less than twice n

03

Step 3. Translate the keyword "twice n".

7 less than 2n

04

Step 4. Translate the phase into algebra.

Thus, the algebraic expression is 2n-7.

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