Ron buys a rug for his room the rug is 8 Ron buys a rug for his room which is 8 feet long and 5 feet wide his room is 10 ft long and 10 feet wide how much of the floor will not be covered? ​

60 ft^2

Step-by-step explanation:

10*10-5*8=60

60 ft

Step-by-step explanation:

because 8x5 is 40

and 10 x 10 is 100

100- 40 = 60 ft

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

step-by-step explanation: