Question 170955
just set up an equation that adds up the distances traveled:
let x denote the time that it was used walking, then the time for joging cam be denoted as (1-x) because it was one hour of total trip, then use the formula that distance = velocity * time; then the equation looks like:

{{{ 5x + 9*(1-x)=8 }}}
{{{5x + 9 - 9x = 8}}}
{{{ -4x + 9 = 8}}}
{{{-4x=-1}}}
{{{x=.25}}}  then to find out how much she jogs, we multiply 9 * (1-0.25) because that is the time used for joggin and the answer is 6.75