If William has 195 marbles, let's find 4/5 of that.
195 * 4/5 = 156
156 is 2/5 of the marbles Daniel has.
Now we must multiply by the reciprocal
156 * 5/2 ( to find all of Daniel's marbles, not just 2/5) = 390 marbles
Daniel has 390 marbles.
Answer:
I think the radius would be 14.28ft
Step-by-step explanation:
Area of circle is pi r^2
Area of circle=641ft
so that means you have to divide 641/3.14 because the point of the question is finding the radius.
so 641/3.14=204.140127
then for the final step finding the square root which is about 14.28ft
that means the radius is 14.28ft.
The bottom answer m y = m h