The answer seems to be D!!
Ok so R=alfonso's rate
w=wind rate=4
d=rt
with wind rate is R+4
agaoins wind rate is R-4
with wind distance is 34
against is 18 miles
time is same
34=(r+4)t
18=(r-4)t
34=(r+4)t
divide both sides by (r+4)
34/(r+4)=t
18=(r-4)t
divide both sides by (r-4)
18/(r-4)=t
18/(r-4)=t
34/(r+4)=t
set equal to each other
18/(r-4)=34/(r+4)
multiply both sides by (r-4)(r+4)
18(r+4)=34(r-4)
distribute
18r+72=34r-136
subtract 18r from both sides
72=16r-136
add 136 to both sides
208=16r
divide both sides by 16
13mph
answer is 13mph with no wind
The volume of the original cube = 18^3 = 5,832 cubic cm
5,832 / 8 cubes = 729 cubic cm.
Side length = Cubicroot729 = 9
The side length is 9 cm
ones is before the decimal tenths is one place right of the decimal and hundreths is 2 places to the right of the decimal
so answer would be 3.42
-10,-3,-1 is your answer. So the first one
