Answer:
Two sequences have the formulae 3n-1 and 7n+2 . A new sequences is formed by the number which appear in both of these sequences.
Step-by-step explanation:
Answer:
4 km per hour and 6 km per hour.
Step-by-step explanation:
The combined running rate = 30/3 = 10 km/h.
If one runner's speed = x then the other one's speed is x+2 km/h.
So x + x + 2 = 10
2x = 8
x = 4
So one runs at 4 km/h and the other at 6 km/h.
Answer:
I can help but for a price.
Step-by-step explanation:
Answer:
B: 1620cm2
Step-by-step explanation:
16×15×2+30×20
77-2 = 75 so that is another way :) yet, you can do 5*15 :)
Mark as brainliest pleases and thank you!