Re: [Math4u] Re: traveling problem

Thank you so much Rick, now I understand it better!

Rick <rcastrap@yahoo.com> wrote:

The equation is d=rt. Distance = Rate * Time.

d = r * t

Ching 50t = 50 * t
Phil 60(t-1) = 60 * t-1

When they meet, their combined distance covered will be 380 miles.

50t + 60(t-1) = 380

5t + 6(t-1) = 38

11t - 6 =38
11t = 44
t = 4 hours

Since t represents the time traveled by Ching, it directly answers the
question, "How many hours does Ching travel?"

-- Rick

--- RayKornele <krazykyngekorny@yahoo.com> wrote:

> --- In Math4u@yahoogroups.com, "alminamom" <alminamom@...> wrote:
> >
> > ching leaves san francisco and travels towards LA at 50mph. An hour
>
> > later, phil leaves LA and travels towards san francisco at 60 mph.
> if
> > the two cities are 380 miles apart, how many hours will it take for
>
> > ching to meet phil?
> >
> The distance between the two cities is unimportant. The equation is
>
> 50t = 60(t-1)
>
> Ching travels 50mph for t hours. Phil goes 60mph for one hour less.
> You want to know when their two distances becom equal.
> ________________________________________
> KrazyKyngeKorny(Krazy, not stupid)
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