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
Air? Unless you mean like a toy boat? IDK, I do know that huge ships like the Titanic are able to float because they have trapped oxygen. Think about if you're swimming; often when you hold your breath you float a bit better than if you were heavily breathing. Sorry i know its not alot to go off of, did i help you a little?
Answer is 138
125+135+85+85+152=582
720-582=138
Answer:
for part b the answer is 90 degrees
Step-by-step explanation:
2 is adjacent from 5 so they are the same degree number
It can be done so in simple daily calculations such as calculating how much money you'll have after after you spend some.
<span>$100- $52= $48
and
if you switch it into an addition problem you will get
$100+(-52)= $48,
Or you can get $48 + $52 = $100</span>
