If 120 is divided into 3 parts which are proportional to 1, , and , what is the middle part?

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.