A set of hemispherical bowls are made so

they can be nested for easy storage. The
largest bowl has a radius of 30 cm and
each successive bowl has a radius 90% of
the preceding one. What is the radius of
the tenth bowl?

there is a picture, sorry i cant put the picture but can you like make a vitual of it in your head?

1 answer

radius=30cm*.9^(n-1)

so n is the number of bowls, the largest being n=1