Answer:
0.0000805 0.00000805 805,000 8,050,000. i think
Step-by-step explanation:
800-200=600 is a good estimate
It is 5 because you have to do 12 squared minus 13 squared and then square root that which equals 5
12 meters because 100 centimeters is equal to one meter.
Answer:
first do:
60mph * 4 hours= 240mi
Let D = the distance the passenger train has to
travel to catch the freight train
Start a stopwatch when the passenger train leaves
Let t = the time on the stopwatch when they meet
Equation for freight train:
d-240=60t
Equation for passenger train:
d=100t
all together:
100t-240=60t
we can do 100t-60t because they both have (t)= 40t
40t=240 *now divide 240 by 40= 6
THEN do:
D= 100mph x 6= 600mi
They will meet 600 mi from the station
to check:
d-240=60t x 6
600-240= 360
60 x 6= 360
360=360
