Question

Tina walked 150 m to the shop but realized she didn't have enough money, so she went back home. If it took her two minutes to leave and come back, calculate the following:

a) The time interval (t in seconds) she was out of the house.
b) The total distance (d) that she walked.

A. 120 seconds; 300 m
B. 180 seconds; 150 m
C. 240 seconds; 300 m
D. 120 seconds; 150 m

Answer 1

Tina took 120 seconds for the round trip to the shop and back, and she walked a total distance of 300 meters. The correct answer to both questions is A. 120 seconds; 300 m.

Step-by-step explanation:

The student asked two questions regarding Tina's walk:

1. The time interval (t in seconds) she was out of the house.
2. The total distance (d) that she walked.

a) Tina took two minutes to go to the shop and come back. Since there are 60 seconds in a minute, we multiply 2 minutes by 60 seconds per minute to find the time interval in seconds:

2 minutes × 60 seconds/minute = 120 seconds

b) Tina walked 150 meters to the shop then walked the same distance back home. To calculate the total distance, we add the distance to the shop and the distance back home:

150 m + 150 m = 300 m

Therefore, the correct answer is: A. 120 seconds; 300 m