Question

interactive practice: understand rate concepts
mekhi competes in a winter triathlon. he skis 15 miles in 2 hours and bikes 24 miles in 3 hours. mekhi wants to know if he skis or bikes faster.
how fast does mekhi ski?
mekhi skis 7.5 miles per hour.
how fast does mekhi bike?
mekhi bikes? miles per hour

Explanation:

Step1: Recall speed formula

Speed is calculated as distance divided by time, so the formula is \( \text{Speed} = \frac{\text{Distance}}{\text{Time}} \).

Step2: Identify bike distance and time

Mekhi bikes 24 miles (distance) in 3 hours (time).

Step3: Calculate bike speed

Substitute into the formula: \( \text{Speed} = \frac{24}{3} \)
\( \frac{24}{3}=8 \)

Answer:

8