A rectangular field is 0.4metres longer than it is wide .if it is length is 6cm ,find itis perimeter. when the breadth of the rectangle is reduced by 0.5metres ,the length is increased such that the perimeter is increased by 1℅4 of itis original. what is the change in the length of the rectangle

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

the answer is 1 becuz if it were 1.0 that would rip apart the entire so ya. : )

~potato.

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