Question 470628
for the airplane d=2080, t=t1+5, and v=4*v1
for the car      d1=195, t1=? , and v1=?

speed formula 
{{{v=d/t}}}

for the airplane we can write:

{{{4*v1=2080/(t1+5)}}}

for the car

{{{v1=195/t1}}}

since the first equation for airplane has 2 unknown lets substitute v1 from 2nd equation

{{{4*195/t1=2080/(t1+5)}}}
{{{780/t1-2080/(t1+5)=0}}}
{{{(780(t1+5)-2080t1)/t1(t1+5)=0}}}
{{{780t1+3900-2080t1=0}}}
1300t1=3900
t1=3

then {{{v1=195/3=65}}}

t=t1+5 = 8
v=4*v1=4*65=260