Step-by-step explanation:
the speed of the first ship is 20 mph
and the second ship is 15 mph
The answer you have is correct

bearing in mind, "t" is in years, 6months is just 1/2 year
solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form
Answer:
y+4=4(x-3)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-4)=4(x-3)
y+4=4(x-3)
I believe that X would be -2.47619.
First you distribute the -1 in front of the parenthesis. Then distribute the 8 outside of the bracts. And finally just solve for X by combing like terms.