anonymous
  • anonymous
A car completes a journey in 10 minutes. For the first half of the distance the speed was 60 km/h and for the second half the speed was 40 km/h. How far is the journey?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
8 kms
zzr0ck3r
  • zzr0ck3r
\(10\) minutes is \(\frac{1}{6}\) of an hour These next two lines follow from distance=rate\(\times\)time and thus time = distance over rate i.e. \(d=r*t\implies t=\frac{d}{r}\) The time traveled at \(60\) is \(\frac{1}{2}\) the distance over \(60\) kmh The time traveled at \(50\) is \(\frac{1}{2}\) the distance over \(40\) kmh Now we know the total time is \(\frac{1}{6}\) of an hour, so we should add our first two times from above and that should be equal to \(\frac{1}{6}\) \(\frac{1}{6}=\frac{1}{2}*d*\frac{1}{60}+\frac{1}{2}*d*\frac{1}{40}\) Solve for distance \(d\).
anonymous
  • anonymous
Thank you zr0ck!

Looking for something else?

Not the answer you are looking for? Search for more explanations.