Question

7 over 4 days, krista deposited $45 into her bank account, transferred $30 to a friend, deposited $59, and withdrew $18. what was the mean change per day to krista’s account during that week?

Explanation:

Step1: Define changes (deposit +, transfer/withdraw -)

Deposits: \( +\$45, +\$59 \); Transfers/withdraw: \( -\$30, -\$18 \). Total change: \( 45 - 30 + 59 - 18 \)

Step2: Calculate total change

\( 45 - 30 = 15 \); \( 59 - 18 = 41 \); \( 15 + 41 = 56 \)

Step3: Find mean (total change ÷ days)

Days = 4. Mean: \( \frac{56}{4} = 14 \)

Answer:

The mean change per day is \$14.