Hi there :-) The formula of the simple interest is I=prt your question ask to find r which is interest rate you do that by dividing each side by (pt) to get R=I÷pt Now solve to get the interest rate R=562.5÷(1,500×5) R=0.075×100 multiply by 100 to get it as percentage R=7.5%
Answer:Find the water height for a weir that is 3 feet long and has flow of 38.4 cubic feet per second. SOLUTION: Therefore, the water height for the weir is 4 feet.