Hello,

An Aircraft carrier can travel 450km in the same time a container ship travels 300km. If the aircraft carrier was traveling 5km/h faster what was the speed of the container ship?

I don't need help answering the actual question, I have a pretty specific question...

d/v=d/v + 5km/h
450km/v = (300/v) + 5km/h
-300/v from both sides
150/v = 5km/h
150/5 = v
Here's my problem, I know that 150 is in km & 5 is in km/h, by process of elimination I know that 150/5 = t not v so what should I have done differently to not have that issue? In this case I figured out what was wrong but in another question I may not so I want to try to understand as best I can.

Thanks a ton! :)

the carrier's speed is 3/2 that of the container ship.

So, if the container ship's speed is x, then
3/2 x = x + 5
x = 10

As for your attempt, since time = distance/speed, you should have said
450/(x+5) = 300/x
again, x=10
Dividing by v both times was wrong, since the speeds are different

or, since distance = time * speed, let v be the slower speed. Then
t = 300/v
(v+5)t = 450
(v+5)(300/v) = 450
v = 10

solve the mathematics question.Two ships leaves port at the same time,one steaming 5km/hr on a bearing N46E and the other at 9km/hr on a bearing S53E.How far apart are the ships after 2hours.

Hello!

It looks like you're trying to solve a problem involving the speed of an aircraft carrier and a container ship. Let's break down the steps you've taken so far and address the issue you encountered.

First, you correctly set up the equation by relating the distances traveled by each vessel to their respective speeds:

450 km / v (aircraft carrier's speed) = 300 km / v + 5 km/h (container ship's speed)

To isolate the variables, you subtracted 300 km/v from both sides, which resulted in:

150 km/v = 5 km/h

Now, the issue you encountered was with the units. You correctly identified that the left-hand side of the equation has the units of kilometers per hour (km/h) since distance divided by speed gives you a rate. However, on the right-hand side, you have 5 km/h, which represents the speed of the container ship.

To avoid confusion and ensure consistency of units, you can convert the left-hand side from kilometers per hour (km/h) to just kilometers (km) by multiplying by time (h).

To do this, you need to recall that speed is defined as distance divided by time. In this case, the speed of the aircraft carrier is 150 km/h. If you multiply this by time (h), you cancel out the hours and are left with kilometers (km).

So, 150 km/h multiplied by time (h) equals 150 km.

Now, let's rewrite the equation with the corrected units:

150 km = 5 km/h

Since the units on both sides of the equation are the same (km), you can now solve for the value of the container ship's speed:

5 km/h = v (container ship's speed)

So, the speed of the container ship is 5 km/h.

By correctly considering the units and making conversions where necessary, you can avoid confusion and ensure accurate results.

I hope this explanation helps! Let me know if you have any further questions.

First try google then jiskha.

Paste your question in google.

On c a . y a h o o you will find solution with detail explanation.