Statistics

A store has clearance items that have been marked down by 50%. They are having a sale, advertising an additional 45% off clearance items. What percent of the original price do you end up paying? 96 A friend has a 83% average before the final exam for a course. That score includes everything but the final. which counts for 15% of the course grade. What is the best course grade your friend can earn? 96 What is the minimum score would your friend would need on the final to earn a 75% for the course? 96 You want to put a 3 inch thick layer of topsoil for a new 29 ft by 31 ft garden. The dirt store sells by the cubic yards. How many cubic yards will you need to order? The store only sells in increments of 114 cubic yards. Out of 320 racers who started the marathon, 234 completed the race. 30 gave up, and 6 were disqualified. What percentage did not complete the marathon? The store is selling lemons at $0.36 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make four 9-inch lemon pies, each requiring half a cup of lemon juice? A population grows according to an exponential growth model, with H. = 70 and P1 = 112 Complete the recursive formula: Write an explicit formula for 19 Suppose a population of honey bees in Ephraim, UT has an initial population of 6900 and 14 years later the population reaches 14000. Use an explicit exponential model to find the rate of growth and common ratio for the honey bee population, Express the rate of growth as a percentage. Round to the nearest tenth. Express the common ratio as a decimal. Round to the nearest thousandth