Question

I'll give a medal to whoever answers this,

Two cars leave towns 800 kilometers apart at the same time and travel toward each other. One car's rate is 16 kilometers per hour more than the other's. If they meet in 4 hours, what is the rate of the faster car?

Answer 1

Idk lol. but i have a friend whos good at these so ill show him lol and get back to ya if i figure it out lol.

Answer 2

Oh alright :o

Answer 3

@vishweshshrimali5

Answer 4

Yeah lol sense we can give medals ill also give ya a medal idk why just will lol ill tag some of my friends that are on here in this as well lol. there really good.

Answer 5

We will continue from where we left earlier

Answer 6

alright

Answer 7

@Directrix @Astrophysics @ILovePuppiesLol

Answer 8

Give me a sec...

Answer 9

alright (:

Answer 10

Well i tagged some friends who might be able to help :) u have a great day :)

Answer 11

you too (:

Answer 12

Thanks :)

Answer 13

v2 = v1 + 16...

So, the equation should be:

d1 + d2 = 800

=> v2*t + v1 * t = 800

=> (v1 + 16) * t + v1 * t = 800

We know t = 4

Thus:

(v1 + 16)*4 + v1*4 = 800

=> v1 * 4 + 16 * 4 + v1 * 4 = 800

=> 8 * v1 + 16 * 4 = 800

Answer 14

We were here I guess?

Answer 15

yes

Answer 16

Great so only thing left is to solve the equations right?

Answer 17

yup

Answer 18

Okays! So we will start with this equation:

8 * v1 + 16 * 4 = 800

Now tell me what is 16*4 ?

Answer 19

64

Answer 20

Great so our equation becomes:

8*v1 + 64 = 800

=> 8 * v1 = 800 - 64

Now, what is 800 - 64?

Answer 21

736

Answer 22

Very nice... so our equation now becomes...

8 * v1 = 736

Now what is the value of v1 from here ?

Answer 23

92?

Answer 24

Good :)

Answer 25

Now we use our final equation

v2 = v1 + 16

=> v2 = 92 + 16

So what do you get ?

Answer 26

Man idk how u do that all that math kills my head lol.

Answer 27

108

Answer 28

Great! So here you go... the answer is 108 km/hr

Answer 29

Any doubt ?

Answer 30

(: nope I'm done lol thanks to u

Answer 31

:) Glad to be of help