Remember that
So if 
and 
, then we know 
.
Then use the Pythagorean identity to solve for cosine:
Answer:
<em>The slowest train goes at 86 mph and the fastest train goes at 96 mph.</em>
Step-by-step explanation:
<u>Distance and Speed</u>
Assume x is the speed of the slowest train, therefore the speed of the fastest train is x+10.
The distance is calculated as:
d = vt
Where v is the speed and t is the time.
The distance traveled by each train in 5 hours is:
Slowest: 5x
Fastest: 5(x+10)
The sum of both distances is 910 miles:
5x + 5(x + 10) = 910
Operating:
5x + 5x + 50 = 910
10x = 910 - 50 = 860
x = 860/10
x = 86
The slowest train goes at 86 mph and the fastest train goes at 96 mph.
27 as you align the numbers from smallest to greatest, 27 is in the center
Step-by-step explanation:
3/4÷5/16
3/4×16/5
=12/5(2 2/5)
Answer:
96
Step-by-step explanation:
6.4 miles per day
x miles per 15 days
cross multiply and get the answer of 96
