Question

plz answer dis fazt with the steps

Answer 1

6) let no be x
1/4x + 2 = 3/4x
multply the equation with 4
x + 8 = 3x
2x = 8
x=4

7) let the numbers be 2x,3x,4x
2x+3x+4x =54
9x =54
x=6
numbers =12,18,24

9) let's take father's age be y and sons age be x
at present 3x = y
four years ago 3x-4 = y-4
3x/x =3/1
3x-4/ x-4 = 4/1
3x-4 = 4x-16
x=12
y=3x
=36

8) let's take 2 digit number be 10x + y
interchanging digits give us 10y+x
10x+y-10y-x =18
9(y-x) =18
y-x =2
y = x+2
x+y =8
x+x+2 =8
2x+2 =8
x=3
y =5

the number is 10*3 + 5=35

10) l = 3b -4
perimeter = 2(l+b) = 32
2(3b-4+b) = 32
16=2b-4
b=6
l=10

Answer 2

Answer:

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Step-by-step explanation: