Answer:
<em>58.7 ft/sec</em>
Step-by-step explanation:
The train traveled half a mile.
1 mile = 5280 ft
0.5 mile = 0.5 * 5280 ft = 2640 ft
A time from 10 sec to 55 sec is 55 sec - 10 sec = 45 seconds.
2640 ft in 45 seconds
speed = distance/time
speed = 2640 ft / 45 sec = 58.6666... ft/sec
Answer: speed = 58.7 ft/sec
Answer:
r(A + B) = rA + rB,. (4). (r + s)A = rA + sA,. (5) r(sA)=(rs)A;. (6). A(BC)=(AB)C,.
Answer:
It will go 400 kilometers in 5 hours and 800 kilometers in 10 hours
Step-by-step explanation:
80*5= 400 (in 5 hours)
80*10=800 (in 10 hours)
16b +5c -10 -8c +2b
18b - 3c -10
