Step-by-step explanation:
Calculate their speed to see who rode faster.
Speed = Distance ÷ Time
Change the unit from minutes to hours so that the answers are in km/h.
Becky's speed
[tex] = 8 \div \frac{15}{60} [/tex]
[tex] = 8 \div 0.25[/tex]
= 32 km/h
Scott's speed
[tex] = 12 \div \frac{25}{60} [/tex]
[tex] = 12 \div 0.41666...[/tex]
= 28.8 km/h (rounded to the nearest tenth)
∵ 32 km/h > 28.8 km/h
∴ Becky rode faster.
