The planner for a company celebration bought 261 balloons. while he was inflating them, 11 of them overinflated and burst. if he had to place them evenly into 5 rooms, how many balloons were in each room?

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,