There are 35 cubes of 8 cubic decimeter and 27 cubic decimeter, with a volume of 432 cubic decimeter. How many cubes are there?

There are 35 cubes of 8 cubic decimeter and 27 cubic decimeter, with a volume of 432 cubic decimeter. How many cubes are there?

Let 8 cubic decimeters x
35 in all
So 35-x of 27 cubic decimeters
So volume = 8x + 27 (35-x) = 432
8x+945-27x=432
19x=513
x=27,35-x=8
So 8 cubic decimeter 27, 27 cubic decimeter 8