Acord is cut into two pieces of different lengths. the sum of the two lengths is 10 centimeters, and the difference between the two lengths is 4 centimeters. find the lengths of the two pieces of cord.

Start with x+y=10 and x-y=4

Add the equations to eliminate y:

   x+y=10 

 + x-y=4 

  2x =14 

So now solve for x:

   2x=14    (Divide each side by 2 to get x by itself)

    x=7 

Now you have solved for x, but you still need to solve for y:

  x+y=10

 7+y=10    (Subtract 7 from both sides to get y by itself)

   y=3 

Now you have both x and y but to check it, just plug it into the original equations:

   x+y=10 >  7+3=10   (That's correct)

    x-y=4 >  7-3=4   (That's correct) 

Step-by-step explanation:

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft

b

step-by-step explanation: