Mason used a 30% coupon to buy a new computer. after the discount, the cost of the computer was $728. determine the original price of the computer. show your work.

1040

Step-by-step explanation:

"1x-0.30x=728"

move all terms to the left:

1x-0.30x-(728)=0

add all the numbers together, and all the variables:

0.7x-728=0

move all terms containing x to the left, all other terms to the right:

0.7x=728

x=728/0.7

x=1040

He probably woul have 1,00000000000 dollars

Step-by-step explanation:

i think it is x = 1.2

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