Answer:
Step-by-step explanation:
-19=-17+k/5
add 17 to both sides
-2=k/5
multiply by 5 on both sides to get k alone
k=-10
If you let X = the distance in miles from Dales's house, and understand rate = distance/ time, the rate going to mountains = x/7, and back from mountains is x/5. If dale was 18mph fast going home, the equation would be...
(coming home rate) = (going to mountain rate) + 18 which is
x/5 = x/7 + 18. Then solve for X.
Use the least common denominator = 35 so multiply everything by 35 and you get...
7x = 5x+630
simplify...
2x = 630, then
x = 315 .
Dale live 315 miles away from the mountains.
Answer:
this equation would be 2(c-8)=3
