The bulk barn manager has one of her employees mix almonds that sell for $2.30/kg and peanuts that sell for $3.20/kg to get a 150kg nut mixture that sells for $2.72/kg. how many kilograms of each type of nut must be used?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

2x minus y equals 6, x plus y equals negative 3

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?