A number 𝑦, when rounded to 1 decimal place, is equal to 0.4Find the upper and lower bound of 𝑦.

Question

A number 𝑦, when rounded to 1 decimal place, is equal to 0.4Find the upper and lower bound of 𝑦.
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Solution 1

When a number is rounded to 1 decimal place, the rounding process could increase or decrease the last digit by 0.05.

So, if y is rounded to 0.4, it means that the actual value of y could be as low as 0.4 - 0.05 = 0.35 or as high as 0.4 + 0.05 = 0.45.

Therefore, the lower bound of y is 0.35 and th Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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