A container ship left Diego Garcia and traveled north at an average speed of 15
mph. A cruise ship left at the same time
and traveled in the opposite direction with
an average speed of 25 mph. Find the
number of hours the cruise ship needs to
travel before the ships are 200 mi. apart.

step-by-step explanation:

b.-4 units

all you   do is count how many times you move

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).