Ask a New Question

A building measuring 90m by 60m is to be built. A paved area of uniform width will surround the building. The paved area is to have an area of 9000m^2. How wide is the paved area

2 answers

(90 + 2w) * (60 + 2w) = (90 * 60) + 9000

4 w^2 + 300 w + 5400 = 5400 + 9000

w^2 + 75 w - 9000 = 0

(90+2w)(60+2w)=9000
(w+37.5)*2-2306.25=0
w=10.52m

Ask a New Question or answer this question.

Similar Questions

A factory is to be built on a lot measuring 210 ft by 280 ft. A local building code specifies that a lawn of uniform width and
1. 3 answers
A factory is to be built on a lot measuring 210 ft by 280 ft. A local building code specifies that a lawn of uniform width and
1. 5 answers
A rectangular building is to be built on a lot measuring 46m by 30m. The building will be surrounded by a strip of lawn of
1. 0 answers
A rectangular building is to be built on a lot measuring 46m by 30m. The building will be surrounded by a strip of lawn of
1. 1 answer

more similar questions