3. three friends, named x, y, and z, use the computer every night. regarding the time in hours each person uses the computer per night, it is known that:
- x time minus y time plus z time is 4;
- twice the time of x plus the quadruple of the time of y plus the time of z is equal to 12;
- the time of x equals the sum of the times of y and z. what is the number of hours of computer use by each friend each night? (note: resolve by cramer rule) / (1.0)

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

Which of the choices shown could be used to prove that aacp=abcp ?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12