Weegy: A 20-foot flagpole casts a 6-foot Shadow. A nearby building that casts a 30-foot shadow is 100ft tall. Solution: 20/6 = /30; The difference between 6 and 30 is x5; 20 x 5 = 100. User: A certain color paint should have a mix of blue and green in a ratio of 5:2. If a house painter needs to use 8 gallons of green paint, how many gallons of blue paint should he mix with it in order to obtain the right color? Weegy: A certain color paint should have a mix of blue and green in a ratio of 5:2. If a house painter needs to use 8 gallons of green paint. The gallons of blue paint he should mix with it in order to obtain the right color is 20 gallon . 5/2 = x/8 ; 2x = 8*5 ' x = 40/2 = 20 gallon (More)

Weegy: A. 4:20 = 2:10 B. 9:27 = 2:6 (More)