Question

Please Answer these 4 linear equation questions.​

Answer 1

Answer:

Step-by-step explanation:

1\ let no be x

so, 1st number = 5x

     2nd number= 3x

the sum of the two number is the 32

so, 5x + 3x = 32

=   8x = 32

=  x = 32/8

    x = 4

so, 1st number = 5x = 5 * 4 = 20

    2nd number = 8x = 8 * 4 = 32

2\ perimeter of eualateral triangle is 42

so its lenght is = perimeter of equaleteral triangle = 42

                       =  3a = 42

                       = a = 42/3

                        a =  14 cm

3\ let no be x

  so, 3/4 - x = 1/2

      =  x = 1\2 - 3\4

         x =  -1/4

4\ let sum of three consecutive number is

1st no.= x

2nd no. = x+1

3rd no. = x+2

so, sum of three consecutive no. = 54

   x+x+1+x+2 = 54

   x = 38