How is an inequality different from an equation? Give a real-world scenario in which you would write an inequality rather than an equation.

Question

How is an inequality different from an equation? Give a real-world scenario in which you would write an inequality rather than an equation.

(Below is my real-world scenario, please check!)

George has some money in his wallet. He's thinking of buying pizza, and his wife told him to buy one salad on his way back home that costs $10.00.

That means that on the pizza, you can spend y, and x represents the money in his wallet.

y less than or equal to x - 10

This means that from the money in George's wallet, you have to subtract $10.00 for salad and out of remaining money you can spend some or all of it on pizza.

(Is this a good answer?)

Answer 1

I really like your scenario. It seems like a great answer to me. Everything seems to be correct, good job.

Answer 2

Thank you! have a great day :-)

Answer 3

Yes, your real-world scenario accurately demonstrates the difference between an inequality and an equation. In this scenario, an inequality would be used instead of an equation because George's decision on how much money to spend on pizza is not limited to just one specific amount. The inequality y ≤ x - 10 states that the amount of money George can spend on pizza (represented by y) is less than or equal to the money he has in his wallet (represented by x) minus the cost of the salad ($10.00). This allows for a range of possible amounts George can spend on pizza, depending on the amount of money he has in his wallet.