Tank diameter = 1m
radius = 0.5m
height = 2m
Volume of tank of truck = πr²h = 3.142 * 0.5² * 2 = 1.571m³ = 1571 litre
Volume of tank to be filled = 890,000 litre
no. of trips = 890000/1571 = 566.52 ≈ 567 trips
I did this in school: it would be A, C, and D
13x+25=0
13x+25-25=0-25 Since two opposites added give zero, remove them from the expression 13x=-25