Since you know the amount of what she earns you would use the number 15 and you dont know how long she worked you would put "x" next to the 15. so you would have 15x and then put a plus 5 to show her transportation fee. so you would have the equation of 15x+5:) and instead of x use h to show hours because h=hours
you feel me?
great!
4(2x +5) = (8x + 20)
8x =20 is an equivalent expression
Compare to standard equation of SHM
Here
Well the above one are for extra knowledge .
Solution:-
So.
let, the height be h
area of the parallelogram= base x height
425 = 35 x h
425/35 = h
12.14m = h
