Answer:
3375
Step-by-step explanation:
The surface area formula for a cube is:
A = 6 a^2
We know what the area is so plug it into the equation:
1350 = 6 a^2
225 = a^2
a = 15
Now plug a = 15 into the equation for volume of a cube:
V = a^3
V = 15^3
V = 3375
Let's get the data out of the problem:
d = 38.4 km
t = 6 h
Now, we can apply in this equation and find his speed:
v = d / t
v = 38.4 / 6
v = 6.4 km/h
Joe has a speed of 6.4 km/h.
Hope it helps.
Answer: A
Step-by-step explanation: Because 4 quarts equal a gallon and 4+4 equals 8
