TEAS ATI Mathematics Practice Test 2026 - Free Essential Academic Skills Practice Questions and Study Guide

To determine the percentage of times Cora did not slip, you first need to assess the number of successful attempts where she did not slip. She attempted to skate a total of 27 times and slipped 20 times. Therefore, the number of times she successfully skated without slipping is calculated by subtracting the number of slips from the total attempts:

27 total attempts - 20 slips = 7 successful attempts.

Next, to find the percentage of successful attempts (the times she did not slip), divide the number of successful attempts by the total number of attempts, then multiply by 100 to convert the decimal to a percentage:

(7 successful attempts / 27 total attempts) × 100 = (7/27) × 100.

Calculating this gives approximately 25.93%. When rounded, this value is typically expressed as 26%.

This calculation shows that Cora did not slip approximately 26% of the time, making that the correct answer.