Two beauticians, lydia and jackie, are working on your hair. lydia can complete the work in 2 hours, while jackie can complete the work in 1 hour. how many hours do the beauticians take if they work together?

a. one half
b. three halvess
c. two thirds
d. four thirds

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Sh what is the value of x? ox= 2.25 x = 11.25 ox= x = 22 1 (2x + 10) seo - (6x + 1) -- nie