Joel made egg sandwiches and tuna sandwiches in the ratio 2: 3. he then made 15 more tuna sandwiches and the ratio changed to 1: 3. how many sandwiches did joel make in all?

answer using a bar model

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

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