You have money in your wallet, but you don't know the exact amount. When a friend asks you, you say that you have 100 dollars gi
ve or take 25. Write an inequality to describe the amount of money in your wallet.
1 answer:
Answer: 75 < x < 125.
Step-by-step explanation:
Let x be the amount of money in your wallet.
The phrase "100 dollars give or take 25" means wallet can have money between (100-25) dollars and (100+25) dollars.
i.e. 100-25 < x < 100+25
⇒ 75 < x < 125.
That means the amount of money in your wallet lies between 75 dollars and 125 dollars.
Hence, the inequality to describe the amount of money in your wallet is 75 < x < 125.
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