Estimate the size of a crowd walking in a charity fundraising march that occupies a rectangular space with dimensions of 10 feet by 1,200 feet (to the nearest whole number). Assume that 40 people occupy a rectangle measuring 10 feet by 12 feet.

Answer:4000 is size of a crowd walking in a charity fundraising March.Step-by-step explanation:Given:Dimensions of rectangular space 10 feet by 12000 feetSo we can say that,Length = 1200 ftWidth = 10 ftNow we will calculate the area of rectangular space which is given byHence Area will be = [tex]length\times width= 10\ ft \times 1200 \ ft= 12000 \ ft^2[/tex]Now we know that 40 people occupy a rectangle measuring 10 feet by 12 feet.Length = 12 ftWidth = 10 ftArea = [tex]length\times width= 10\ ft \times 12 \ ft= 120 \ ft^2[/tex]It says that 40 people are occupied in 120 [tex]ft^2[/tex]So how many people will be there in 12000 [tex]ft^2[/tex]By using unitary method we get,Number of people = [tex]\frac{40\times 12000 \ ft^2}{120 \ ft^2} = 4000 \ peoples[/tex]Size of a crowd walking in a charity fundraising March is 4000.