Anyone here any good at maths?

Question

salaam

can someone plz help me with this cuz in section ppl actually answer questions lol and the homework help section is useless

The width of a rectangle is x cm. The length of the rectangle is 6 cm longer than its width.

a) Write down an expression, in terms of x, for the length of the rectangle.

The perimeter of the rectangle is 40 cm.

b) By setting up an equation, work out

i) the value of x

ii) the length of the rectangle.

thank yooh =]

Answer 1

a) x+6

b) x+x+(x+6)+(x+6)= 40

    2x+2(x+6)=40

    2x + 2x + 12 = 40

    4x + 12 = 40

    4x= 28

      x = 7

c) length= 7 + 6 = 13

Answer 2

Ok I am not the nerd type but I will try to help you out, its been 5 years since high school!

a) (x+6)

b)i) x+x+(x+6)+(x+6)=40

40=4x+12

28=4x

x=7

There you go

ii)Length=7+6

=13

Answer 3

yes, the only subject i am good in is math, but you got the answers!!

Answer 4

wa alaikum assalam sista;-)

i loved mathss...still love it..

let the width of rectangle = x

then length = x + 6



perimeter = 2( width + length) = 40

  

substituing the values in the above equation:

2[  (x)   +   (x+6)  ]  = 40

  2[2x+ 6]               =40

  4x + 12 = 40      

  4x = 40 -12

   x=    28/4              

   x = 7 cm

          

        width=x= 7cm         length=x+6 = 7+6 = 13cm

Answer 5

a-x=6

b-

well anyway the equation is 4x=12=40

so x= 7

so the length is 13