Which table represents a proportional relationship that has a constant of proportionality equal to 0.8?
*
0
0
0
4 8 10
0.5 1 1.25
0
x 0 5 10 12.5
0 4 8 10
x 0 48 10
0.8 0.8 0.8 0.8
0
~
0
0
0.8
5 10 12.5
10.8 20.8 25.8
Mark this and return

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

d is the answer

step-by-step explanation:

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake