Answer:
Triangle=89.9 + 50.1 + 40(flat)= 140+40=180 and 180 is a straight angle ABC
\ /
89.9+50.1=140
Given that,
A circular running track is ¼ mile long.
Elena runs on this track, completing each lap in 1/16 of an hour
To find,
Elena’s running speed.
Solution,
Formula used :
Speed = distance/time

So, Elena’s running speed is 4 mph.
Answer:
B
Step-by-step explanation:
Answer:
true 7x+5y=9
Step-by-step explanation: