luis rides his bicycle 3/4 mile in 5 minutes, or 1/12 hour, along the bike trail. assuming he rides at a constant rate, what is his speed, in miles per hour?
miles/hour is just that.
 
(3/4)/(1/12) = (3/4)(12) = 9 mph
what’s your day rate. the distance covered by a car in 5 h if it is moving with a speed of 75 km/h is\_\_\_\_\_\_\_\_? u (initial velocity) = 18 km/hr 
t ( time )= 2.5 sec
v( final velocity) = 0 m/s
from, the first equation of motionv = u +  a×t0 = 5 +  a×2.5a = - 2 m/s2 13 km answer: `1.00` v = (4/3)πr³ 

dv/dt = 4πr².dr/dt

so, when the diameter is 20 cm we have:

-4π = 4πr².dr/dt

hence, dr/dt = -1/r²

i.e. dr/dt = -1/10² => -1/100

now, d = 2r

so, d(d)/dt = 2.dr/dt

=> d(d)/dt = -1/50 cm/hour

or, -0.2 mm/hour

:)> jamnblues
wow- that is really low miles- ask $2500- worth 10 grand in Belize let the speed of train = x km /hlet the speed of car = y km/hcase 1 : 120 km by train and 480 by cartime taken to travel 120 km by train = 120x hrstime taken to travel 120 km by car = 480x hrsaccording to first condition :120x + 480y = 8⇒1x + 4y = 115     
1case 2 : 200 km by train and 400 by cartime taken to travel 200 km by train = 200x hrstime taken to travel 400 km by car = 400x hrsaccording to second condition :    200x + 400y = 82060 = 813 = 253         as, 20 min = 2060 hr = 13 hr⇒1x + 2y = 124     
2subtracting 2 from 1, we get      2y = 115 - 124⇒2y = 8-5120⇒y = 80now, from 1, we get    1x + 480 = 115⇒1x = 11 - 120 = 160⇒x = 60so, speed of train = 60 km/hspeed of car = 80 km/h hi jean! the jingle jungle 5k is such a fun event! while the family fun 5k's are not timed events, they do require that runners maintain a 16-minute/mile pace. there will be transportation available to the finish line for those that aren't able to keep above that. the pacers will go along at the very back of the race at that pace, so you just want to try to stay ahead of them. you should be able to get your medal at the finish area. (this is subject to change, but in the past, you could) i hope this helps! please let me know if you have any other questions. this depends upon the type of trekking and which route your are going for trekking, but usually not more than seven hours per day. once you reach to 3000m you will walk for six hours.