Which of the following is a real world problem that could be solved with the sum -22+9?
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One possible real-world problem that could be solved with the sum -22+9 is calculating the change in temperature over time. Let's say the temperature initially dropped by 22 degrees Celsius and then increased by 9 degrees Celsius. We can find the net change in temperature by adding the temperature decrease (-22) and the temperature increase (+9). The sum (-22+9) would result in a net decrease of 13 degrees Celsius, indicating the overall change in temperature.
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Another real-world problem that could be solved with the sum -22+9 is determining the overall change in a person's bank account balance. Let's say someone had a balance of -22 dollars, indicating that they had a negative balance or were in debt. If they then received a deposit of 9 dollars, it would increase their balance. By adding the initial balance (-22) and the deposit (+9), we can find the new balance, which would be -22+9 = -13 dollars. Thus, the sum helps determine the new balance and the overall change in the person's account.