Find the value of x and y, (3x - 2y, 7) = (11, x + y)

Step-by-step explanation:

Given,(3x-2y,7)=(11,x+y)

So,3x-2y=11(i)

      7=x+y

   or,x+y=7(ii)

Now,Multiplying eqn.(ii) by 2,we get,

       2x+2y=14(iii)

Adding eqn(i) and eqn(iii),

        3x-2y+2x+2y=11+14

     or,5x=25

     or,x=5

Substituting value of x in eqn(i),

         5+y=7

      or,y=2

Hence,the values of x and y are 5 and 2 respectively.    

  $24.00

Step-by-step explanation:

When the number of people is multiplied by a factor of 5/4, the cost is multiplied by a factor of 4/5 (the inverse of the people multiplier).

  4/5×$30 = $24.00 . . . per person