Question

Yuto left his house at 10 a.m. to go for a bike ride. By the time Yuto’s sister Riko left their house, Yuto was already 5.25 miles along the path they both took. If Yuto’s average speed was 0.25 miles per minute and Riko’s average speed was 0.35 miles per minute, over what time period in minutes, t, starting from when Riko left the house, will Riko be behind her brother?

Riko will be behind Yuto when 0 ≤ t < ?
minutes.

Answer 1

The answer is 52.5

Step-by-step explanation:

Writing and Solving Linear Inequalities

Yuto left his house at 10 a.m. to go for a bike ride. By the time Yuto’s sister Riko left their house, Yuto was already 5.25 miles along the path they both took. If Yuto’s average speed was 0.25 miles per minute and Riko’s average speed was 0.35 miles per minute, over what time period in minutes, t, starting from when Riko left the house, will Riko be behind her brother?

Riko will be behind Yuto when 0 ≤ t <52.5

Answer 2

When Riko had exited the house, Yuto was 5.25 miles ahead of her.