Final answer:
Delon increased the distance he ran by 20 percent. The calculation involved dividing the increase in distance (6.4 miles) by the original distance (32 miles), and then multiplying by 100 to find the percentage increase.
Step-by-step explanation:
To find the percentage increase that Delon experienced in his running distance, we first take the amount of increase in his running distance, which is 6.4 miles, and divide it by the original distance he ran, which was 32 miles. We then multiply the resultant decimal by 100 to get the percent increase.
The calculation will look like this: Percentage Increase = (Increase/Original Distance) × 100.
Substituting the values we have: Percentage Increase = (6.4/32) × 100
Percentage Increase = 0.2 × 100
Percentage Increase = 20 percent
So, Delon increased the distance he ran by 20 percent. This is a significant increase from his earlier running distance, showing that Delon is becoming more proficient with his running capabilities similar to how a marathon runner improves performance.