Two spheres have a combined volume of 148 cubic inches and a combined surface area of 160 square inches. Find the radii of the two spheres. What are the equations used to find the radii?

Question

Two spheres have a combined volume of 148 cubic inches and a combined surface area of 160 square inches.  Find the radii of the two spheres.  What are the equations used to find the radii?

amistre64 · Answer

do we know the general formulas for volume and surface area?  i think the rest is just a system of 2 equations in 2 unknown

amistre64 · Answer

$$V_1+V_2=148$$$$S_1+S_2=160$$
im pretty sure that volume and surface area deal with a radius only, so that might make it even simpler ... maybe not

amistre64 · Answer

4/3 pi r^3
    4 pi r^2

those sound familiar for volume and surface area