Question

Layla likes to walk on a treadmill to stay in shape. In addition to her walk, she warms up and cools down with some stretches. Let t be the total length of her workout, w be the length of her warm-up, and c be the length of her cool-down, all in minutes. Then t–w–c is the time she spends on the treadmill. This morning, Layla worked out for 40 minutes, including her 5-minute warm-up and 7-minute cool-down. How many minutes did Layla walk on the treadmill this morning? Write your answer as a whole number or decimal.

Answer 1

To find the time Layla spent on the treadmill, subtract the lengths of her warm-up and cool-down from the total length of her workout. Layla walked on the treadmill for 28 minutes.

Step-by-step explanation:

To find the time Layla spent on the treadmill, we need to subtract the lengths of her warm-up and cool-down from the total length of her workout. Let's calculate:

Total length of workout = 40 minutes

Length of warm-up = 5 minutes

Length of cool-down = 7 minutes

Time spent on the treadmill = Total length of workout - Length of warm-up - Length of cool-down

Time spent on the treadmill = 40 minutes - 5 minutes - 7 minutes

Time spent on the treadmill = 28 minutes

Therefore, Layla walked on the treadmill for 28 minutes this morning.