Question

Sasha has pennies and one-dollar bills in her pocket. The number of pennies is seven less than three times the number of one-dollar bills. Let 'o' represent the number of one-dollar bills. Write an expression for the number of pennies.

A. 3o−7
B. o−7
C. 3o+7
D. o+7

Answer 1

The expression representing the number of pennies, which is seven less than three times the number of one-dollar bills, is 3o - 7.

Step-by-step explanation:

The question asks us to write an expression for the number of pennies Sasha has in her pocket based on the number of one-dollar bills she has. We are given that the number of pennies is seven less than three times the number of one-dollar bills. Using 'o' to represent the number of one-dollar bills, the expression for the number of pennies would be 3o - 7.

To find this, we follow these steps:

1. Identify that the base quantity is three times the number of one-dollar bills (3o).
2. Subtract seven from that product to find the smaller quantity which is the number of pennies (-7).
3. The final expression that represents the number of pennies is 3o - 7.