Answer:
40 minutes
Step-by-step explanation:
The least common multiple of 8 minutes and 10 minutes is ...
LCM(8, 10) = 8·10/GCD(8, 10) = 80/2 = 40
The red and blue trains will arrive together again in 40 minutes.
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Answer:
216.7
Step-by-step explanation:
Use the Law of Sine Formula:
a/SinA = b/SinB = c/SinC
You are looking for side "b" in this case
Add up the Angles first so you can get Angle C:
180 - (80+70) = 30
After you get that, you have all your needed information to find "b":
b/Sin80 = 110/Sin30
Cross multiply and you will get:
b . Sin30 = 110 . Sin80
b = (110 . Sin80)/Sin30
Enter that into your calculator and you will get "216.7"
