Question

urgent need

Answer 1

Okay I've got it worked out and it's all in the attachment.

Answer 2

Such a problem is best approached by NAMING the values desired.

"what is the average speed of each?"

C = Speed of Car #1
D = Speed of Car #2

Now, we can talk about them.

Answer 3

i didn't get it

Answer 4

tkhunny - I didn't solve for either. I solved for the average velocity then I solved for Car A and Car B

Answer 5

That's just the start.

We have this:

C = Speed of Car #1
D = Speed of Car #2

We have more problem statement...

" the average speed of the car is 5 km/hr more than that of the other "

Just pick one. C = D + 5 km/hr

We have more problem statement...

"end of 5 hr"

Car #2 Travels D * 5 hr = 5D kh/hr
Car #1 Travels C * 5 hr = (D + 5 km/hr) * 5 hr = 5D + 25 km

How are we doing?

Answer 6

@wolf1728 No worries. The OP asked, so I thought I'd try a slightly different approach.

Answer 7

where does 425 gone

Answer 8

Excellent question!!

We have more problem statement!!! You knew I was going to say that, right?

" they are 425km apart "

425 km = 5D + 5D + 25 km

You should be able to solve this for D.

Sorry, I wrote " 5D kh/hr" above. That should have been "5D km".

Answer 9

Units can be a blessing and a curse. I became a little confused on this one. The numbers should still work out.

Answer 10

D= 40

Answer 11

and C = 45 km
@tkhunny
plse check is it right

Answer 12

I believe we have it!