evalynpikachu
contestada

URGENT I NEED THE ANSWER TO THIS FROM PLATOWEB

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all this. What is Mary’s average speed?
A.
8 meters/second
B.
1.25 meters/second
C.
25 meters/second
D.
4.5 meters/second
E.
0.42 meters/second

Respuesta :

jllbdm

Answer:

E is the correct answer because you have to multiply 10 by 60 (60 seconds in a minute) before doing distance over time. you also have to add all the distances up before this. 

60*10=600

125+80+45=250

so, 250/600= .416666 

=E

Explanation:

Otras preguntas