The sum of the speeds is 720.8 miles per hour. If the speed of the first train is 9.2 mph faster than that of the second train,
find the speeds of each
2 answers:
Let the speed of second train = x mph
Speed of first train = (x+9.2) mph
The sum of the speeds is 720.8 mph


Sum and difference problem.
Speed of faster train = (Sum+difference)/2=(720.8+9.2)/2=365 mph
Speed of slower train = (Sum-difference)/2=(720.8-9.2)/2=355.8 mph
You might be interested in
Answer:
-9
Step-by-step explanation:
= 
Answer:
0.00176
Step-by-step explanation:
Probability = 10/30 × 9/29 × 8/28 × 7/27 × 6/26
= 56/31668
Answer:
$ 97
Step-by-step explanation:
Total payment = A + b = 488 + 294 = 782
half of bills = 782 /2 = 391
B owe to a: 488 - 391 = 97
check: 97 + 294 = 391
Answer:
True
Step-by-step explanation:
The definition of per is for each. Per is used with units to express a rate.
The answer is c I’m pretty sure