Answer:
126 inches
Step-by-step explanation:
C = 2π·r = π·d = 3.14×40in = 125.6 inches ≈ 126 inches
Answer:
x = 2 ± √11 (I believe)
Step-by-step explanation:
Step-by-step explanation:
just take from me..your most best and smarties person ever...i don't know the answer
Answer:
Third and forth.
Step-by-step explanation:
Marks up mean increasing the price.
Answer: Both families were travelling at the same speed/rate of 1mile/0.65mins or 1mile/0.01hr.
Step-by-step explanation: Speed of Houck family's train = 552m/6hrs
speed of Robert family's train = 744m/8hrs.
Therefore considering Houck speed,
552miles = 6hours
1mile = (6 x 60)/552
= 360/552
= 0.65minutes. Average speed = 1mile/0.65mins. Or 1mile/0.01hr
For Robert
744miles = 8hours
1mile = ( 8 x 60 )/744
= (480/744)minutes
= 0.645
= 0.65minutes. Average speed = 1mile/0.65mins. Or 1mile/0.01hr
Conclusion: Both families were travelling at the same speed/rate.
To get that minutes in hour, just divide by 60 to get concert to hours.