Change your fraction to whole by 72×8+1 which is 577 then do 9×9+1 which is 82 then times 577 to 82 which is 47,314
If there are 5 specific spots and the order does matters then we would have:
11*9*8=792
Hope this helps!
Answer:
253.548 minutes which rounds to 254 minutes
Step-by-step explanation:
1 hour = 60 minutes
4.2258 × 60 minutes = number of minutes per 4.2258 hours
253.548 minutes
The question does not specify how to round it so I will round to the nearest whole number: 254 minutes.
Hello!
The trains are going in opposite directions, one at 60 mph and the other at 50 mph. We can use this information to create the following formula, where variable "h" represents the number of hours:
50h + 60h = 550
Combine like terms:
110h = 550
Divide both sides by 110:
h = 5
We have now proven that it would take 5 hours for the two trains to be 550 mile apart.
I hope this helps!
Volume is given to be 4.5 m^3
v = length x width x height
v = lwh
want everything in one variable w
given that;
l = 2w
using volume...
h = 4.5 / lw
h = 4.5 / 2w^2
surface area = wl + 2hl + 2wh
sub for length and height
s = 2w^2 + 9/w + 4.5/w
s = 2w^2 + 13.5/w
derivative s
s' = 4w - 13.5/w^2
0 = 4w - 13.5/w^2
13.5/w^2 = 4w
13.5 = 4w^3
13.5/4 = w^3
3.375 = w^3
cube root
1.5 meters = w
then the length = 2(1.5) = 3 meters
height = 4.5/(3*1.5) = 1 meter
