Answer:
Range：35
Mean：27.6
Step-by-step explanation:
Range is the highest number minus the smallest number 40-5=35
Mean is adding up all the numbers，then divide by how many numbers there are 414 divided by 15
5:20 6:30 7:40 8:50 9:60 10:70
Answer:
3÷8=0.375
Step-by-step explanation:
1/8 of a number can be found by dividing the number by 8.
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.
