Question

You have $160 in a savings account. Each week for 7 weeks, you take out $32 for spending money. How much money is in your account at the end of 7 weeks? Write an expression and an answer separately.

A. Expression: $160 - (7 * $32); Answer: $344
B. Expression: $160 - $32/7; Answer: $160
C. Expression: $160 + (7 * $32); Answer: $384
D. Expression: $160 * 7 - $32; Answer: $1,080

Answer 1

The correct expression for the calculation is $160 - (7 × $32). Multiplying $32 by 7 gives $224, which when subtracted from $160, results in a negative number. Since the account balance cannot be negative, the account is emptied and the final answer is $0.

Step-by-step explanation:

The student's question is about determining how much money is left in a savings account after withdrawing a certain amount each week for 7 weeks. To find the correct answer, we need to subtract the total amount withdrawn from the initial balance. Since $32 is taken out each week for 7 weeks, the total amount withdrawn is 7 times $32, which is $224. Therefore, the expression to determine how much money is left in the account is $160 - (7 × $32).

Using this expression, we calculate the amount remaining as follows:

1. Multiply the weekly withdrawal by the number of weeks: $32 × 7 = $224.
2. Subtract this total withdrawal from the initial savings: $160 - $224.
3. The result is negative, so the correct amount left in the account is actually $0, as the account balance cannot go below zero.

Therefore, the correct option with both the expression and answer is not listed in the options provided by the student. Instead, the correct answer is:

Expression: $160 - (7 × $32); Answer: $0 (Account is emptied, no overdraft considered).