Marco made of rectangular prism using 1/2 m cubes the rectangular prism has a volume of 5 m³ how many cubes did Marco use

Ok so

1 find volume of 1 cube

2. find total volume of rectangular prism

1/2 m cubes

volume=side^3

side=1/2m (I guess since that was what was given)

v=1/2^3=1/8

so

volume of 1 cube times number of cubes=total volume

1/8m^3 times number of cubes=5m^3

multiply both siides by 8/1 m^3 to clea fraction (since 8/1 times 1/8=8/8=1)

number of cubes=40

needs 40 cubes