Question

A skyscraper is 1,250 feet tall. It has an antenna that increases the height of the building by 15%. What is the height of the skyscraper with the antenna?​

Answer 1

1437.5 feet

Explanation:

1,250 is the height of the skyscraper without the antenna.

by divinding 1250 by 100, you get 1% of the building's height

1% of 1250 is 12.5

Since the antenna adds 15% height, you multiply the 1% by 15 to get 15% of the total.

12.5 x 15 = 187.5 feet

So the antenna adds 187.5 feet to the skyscraper

by adding 1250 and 187.5, you get the total height of the building and antenna together

1250 + 187.5 = 1437.5 feet

Hope this helps and makes sense : )