Jamie is starting a new marketing strategy that causes her number of clients to grow exponentially. Jamie starts with 50 clients, and each month, her number of clients doubles. The expression 50⋅2^m can be used to model the expression. Jamie found that after just 6 months, she had reached 3,200 clients. How did Jamie reach this solution?

1 answer

To understand how Jamie reached her solution of having 3,200 clients after 6 months, we can break down the expression given for her number of clients: \( 50 \cdot 2^m \), where \( m \) represents the number of months.

  1. Initial Number of Clients: Jamie starts with 50 clients.

  2. Exponential Growth: Each month, her number of clients doubles. This is represented by the multiplication by \( 2 \) raised to the power of \( m \), where \( m \) is the number of months that have passed.

    The formula \( 50 \cdot 2^m \) means that after \( m \) months, her clients can be calculated as follows:

    • After 0 months (\( m = 0 \)): \[ 50 \cdot 2^0 = 50 \cdot 1 = 50 \ \text{clients} \]
    • After 1 month (\( m = 1 \)): \[ 50 \cdot 2^1 = 50 \cdot 2 = 100 \ \text{clients} \]
    • After 2 months (\( m = 2 \)): \[ 50 \cdot 2^2 = 50 \cdot 4 = 200 \ \text{clients} \]
    • After 3 months (\( m = 3 \)): \[ 50 \cdot 2^3 = 50 \cdot 8 = 400 \ \text{clients} \]
    • After 4 months (\( m = 4 \)): \[ 50 \cdot 2^4 = 50 \cdot 16 = 800 \ \text{clients} \]
    • After 5 months (\( m = 5 \)): \[ 50 \cdot 2^5 = 50 \cdot 32 = 1600 \ \text{clients} \]
    • After 6 months (\( m = 6 \)): \[ 50 \cdot 2^6 = 50 \cdot 64 = 3200 \ \text{clients} \]
  3. Calculating After 6 Months: To find the number of clients after 6 months, we substitute \( m = 6 \) into the expression: \[ 50 \cdot 2^6 = 50 \cdot 64 = 3200 \]

Thus, after 6 months, Jamie reaches 3,200 clients by using the mathematical model \( 50 \cdot 2^m \) correctly where she calculates the number of clients based on exponential growth, leading to the conclusion that she could have reached that figure after doubling her clients each month.