Answer:

Step-by-step explanation:
Step-by-step explanation:
let X = speed of slow bicycle rider
2x=speed of fast bicycle rider
3(x+2x)=72
X=8mph(slowest bicycle rider)
2x=16mph(fastest bicycle rider)
Answer:
45
Step-by-step explanation:
200 divided by 2 = 100-55=45
Answer:
3) 10
4) 12
hope that helps buddy
Step-by-step explanation:
alright then, 12x + 17 = 66! we started with 17 and there is twelve months with x amount of inches grown plus the already 17 that equals the total 66
so it is 12x + 17 = 66