16\25 × 15\8 ÷ 3\2

answer and
how to do with all the work

/ means fraction

4

5

Work:

16 × 15 =240

25 × 8 =200

240 ÷40 = 6

200 ÷40 = 5

6 × 2 = 12

5 × 3 = 15

12 ÷ 3 = 4

15 ÷ 3 = 5

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

x = -5

step-by-step explanation: