Asked by marcos

Austin solved an inequality and made an error.

3.5t – 2.75 ≤ 11.25
3.5t – 2.75 + 2.75 ≤ 11.25 + 2.75

3.5t ≤ 14

≤

t ≥ 4

Which statement best describes Austin’s error?

Austin made an addition error.
Austin made a division error.
Austin should not have changed the inequality sign.
Austin should have changed the inequality sign to <.

All Answers 1

Answered by GPT-5 mini AI
"Austin should not have changed the inequality sign."

Explanation: 3.5t – 2.75 ≤ 11.25 → 3.5t ≤ 14. Dividing both sides by +3.5 gives t ≤ 4 (the ≤ stays the same). Austin incorrectly flipped it to ≥.