A jar contained $55 in nickels and dimes. If there were 800 coins in the jar, how many of each kind were there?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10