The city has 78 buses. 33% of them are new and cause less pollution. if the city replaces 15 old buses with new ones, what percent of the buses will be new?

Solution:

Kayson is looking at two buildings, building A and building B, at an angle of elevation of 59°

Building A is 40 feet away, and building B is 60 feet away

This forms a right angled triangle

height of building is the perpendicular

Distance between kayson and building forms the base ( adjacent)

If the height of the building A is x feet, then

Thus, height of building A is 66.57 feet

Building B is 60 feet away

If the height of building is y feet,

Thus, building B is taller

Building B - building A = 99.86 - 66.57 = 33.29 feet

Thus building B is taller and it is around 33.29 feet taller than building A