Question

you want to stack cups 1/4 minute. your first attempt takes 1/2 minute. your second attempt takes 3/10 minutes less than your attempt. Do you meet your goal?

Answer 1

The student reduced their cup stacking time from 30 seconds in the first attempt to 12 seconds in the second attempt by subtracting the given time reduction. The second attempt at 12 seconds meets the goal of stacking cups within 15 seconds.

Step-by-step explanation:

The student is trying to stack cups within a certain time goal, specifically 1/4 minute (which is 15 seconds). The first attempt took 1/2 minute (30 seconds), and the second attempt took 3/10 minutes less than the first attempt. To determine if the student met the goal on the second attempt, one must calculate the time taken for the second attempt:

First attempt: 1/2 minute or 30 seconds.

Reduction in time: 3/10 minute or 18 seconds (since 1 minute = 60 seconds, so 3/10 of that is 18 seconds).

Second attempt time: 30 seconds (first attempt) - 18 seconds (reduction) = 12 seconds.

Since the second attempt took 12 seconds and the goal was to do it in less than 15 seconds, the student met the goal on the second attempt.