Here are the rates of the trains:
(n represents train A's speed)
A: n
B: n + 10
We know it is 5 hours, and total distance, so:
5(n) + 5(n + 10) = 1250
5n + 5n + 50 = 1250
10n = 1200
Divide:
n = 120
One train goes 120, the other goes 130
Answer:
191
Step-by-step explanation:
2³×5² -3² = 8×25 -9 = 200 -9 = 191
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This is a good problem for your calculator.
Whatever happened to just normal 70 times 6,000? The product is 420,000. If that was your question.
Answer:
62 degrees
Step-by-step explanation:
Cos ? = 25 / 54
25 / 54 = 0.4629
Cos-1 of 0.4629 is 62.4215
Round to the nearest degree
62.4215 = 62
4 is the solution
cause
6 +4/2 = 8
6 + 2 = 8
8 = 8
