Question

verify each of the following (-9) × (-16/12) = (-16/12) × (-9). ( please answer this question step by step in detail )(with L.H.S and R.H.S ​

Answer 1

Answer:

Length, breadth and height of a room are 5 m, 4 m and 3 m.

Area of four walls of the room =2h(l+b)

=2×3(5+4)

=6(9)

=54 sq m

Area of the ceiling =l×b

=5×4

=20 sq cm.

Total area of the four walls and the ceiling of the room

=54+20

=74 sq cm

Cost of white washing = Rs 7.50 per sq m

Total cost of white washing =74×7.50= Rs 555

Answer 2

Answer:

Step-by-step explanation:

= -9×-16÷12= -16÷12×-9

= +144÷12=+144÷12

= 12=12

hence ,LHS= RHS..