Question

vadim weighs himself on his bathroom scale. the smallest divisions on the scale are 1-pound marks, so the least count of the instrument is 1 pound. vadim reads his weight as closest to the 142-pound mark. he knows his weight must be larger than 141.5 pounds (or else it would be closer to the 141-pound mark), but smaller than 142.5 pounds (or else it would be closer to the 143-pound mark). so vadim's weight must be

Answer 1

Answer:

141.5 ≤ x < 142.5

Step-by-step explanation:

We know that Vadim's weight (x) is greater than or equal to 141.5. This is because 141.5 is the smallest number that rounds to 142.

141.5 ≤ x

We also know that his weight is less than 142.5 because that is the smallest weight that rounds to 143. Remember, we are not including 142.5 because it rounds up.

141.5 ≤ x < 142.5