SOLUTION: grandmas age is four less than six times little pattys age if the sum of their age is 80 how old is each?

Question 872765: grandmas age is four less than six times little pattys age if the sum of their age is 80 how old is each? joey weighs five pounds less thsn twice his brother. together they weigh 100 pounds. what are there weights an 30 meter cable is cut so that one piece is two meters less than three times the older. how long is each piece
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

GOAL is to Gather Like Terms, So We can Read:  � x = Answer�

5x+8=3x+20 ,    x = 6      

9a+4=2a+25 ,  a = 3

6n-5=3n+10 ,  n = 5

6y+7=4y-3 ,   y = -5

12k+5=k+49,    k = 4

 -3b+8=2b+48,   b = -5

 5x-10=9x+26 ,  x = -9

4q-15=6q-1 ,    q = -7

12-7t=30+2t ,    t = -2

10-3p=2+5p ,    p = 1

-9w+17=7-4w ,  w = 2

-11y-4=11-8y ,    y = -3

8d=3d+60 ,   d = 12

-2m=16-m ,   m = -16

15+6x=2-7x,  x = -1

No problem :)

grandmas age is four less than six times little pattys age if the sum of their age is 80 

x + (6x-4) = 80 

 7x = 84

  x = 12, Patty's Age.  Granma is 68   

                                                                                                                                                             joey weighs five pounds less thsn twice his brother. together they weigh 100 pounds.  

x + (2x-5) = 100lb

    3x = 105lb

     x = 35lb, bother's weight.  Joey wieghs 65lb                                                                                         an 30 meter cable is cut so that one piece is two meters less than three times the older. 

 x + (3x-2) = 30m

     4x = 32

      x = 8m, the shorter piece.  The longer piece is 22m 

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