Yesterdya bethany sent 60 text messages she said that 15% of those mesages were ro her vesr friend how mant text messages did bethany send to her friend yesterday?

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,