The perimeter of a square field is 6400m. Find the cost of reaping the field at Rs.35 per 100 sq. m.​

side= 6400/4

       =1600

therefore the area= 1600*1600

                                2560000

cost of reaping 100sq.m.=35

cost of reaping 1sq.m= 0.35

cost of reaping 2560000m sq=  2560000*0.35

                                                    = 906000

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk