A will states that 4/5 of an estate is to be divided among relatives. Of the remaining estate 1/4 goes to american cancer society. what fraction of the estate goes to the american cancer society?

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,