Step 1: Simplify using distributive property, and other methods needed 2(3y+6+3)=196−16 6y+18=180 Step 2: Subtract 18 from both sides. 6y+18=180 -18 -18 6y=162 Step 3: Divide both sides by 6. 6y/6=162/6
Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean
Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?