Ayudenme a resolver los problemas de sistema de ecuaciones lineales pero con fracciones: 1) x/4 + y/12 =3/2
2) x/3 - y/12 = 1/4
Porfavor ayudaaa!

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

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.