Question 109875

{{{V= -20t + 250}}}

If {{{ V}}} =  ${{{150}}}, then:

{{{150= -20t + 250}}}……..move {{{-20t}}} to the left, and {{{150}}} to the right

{{{20t = 250 - 150}}}

{{{20t =  100}}}..divide both sides by {{{20}}}

{{{t = 5}}}

the value of the software is ${{{150}}} after {{{ 5}}} years