The dimensions of a rectangle if its perimeter is 100 cm and it length is 20cmmore than it breadth.

Step-by-step explanation:

where l= length

and b= breadth

Perimeter of a rectangle = 2l +2b

100 = 2(20+b) + 2b

100 = 40 +2b +2b

100 = 40 + 4b

100-40 = 4b

60 = 4b

breadth= 15cm

length= 20+15

= 35 cm

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

step-by-step explanation: