anonymous
  • anonymous
Two friends are painting a living room. Ken can paint it in 6 hours working alone. If Barbie works alone, it will take her 8 hours. How long will it take working together? Round to the nearest tenth.
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.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
i hated these problems when i was a kid :D but let me try
amistre64
  • amistre64
the idea is to determine how much work can be done in a given unit of time; in this case, say 1 hour
anonymous
  • anonymous
never mind :)

Looking for something else?

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

More answers

anonymous
  • anonymous
Two words: Harmonic mean
amistre64
  • amistre64
if K works at a steady rate, then in 1 hour, 1/6 of the room is painted if B works at a steady rate, then in 1 hour, 1/8 of the room is painted togehter in an hour they can paint 1/6+1/8 of the room
anonymous
  • anonymous
Ken paints 1 room in 6 hours. 1/6 Barbie pains 1 room in 8 hours 1/8 1/6+1/8 = 8/48+6/48 =14/48 So they can pain 14 rooms in 48 hours so 48/14=3.428 hours. Not sure if it's right.
amistre64
  • amistre64
6+8 ---- is the work per hour ; if we flip that we get hours per work 6x8
lgbasallote
  • lgbasallote
1/6 + 1/8 = 1/t multiply everything by t... t/6 + t/8 = 1 8t + 6t = 48 14t = 48 t = 24/7 t = 3.4 hours
amistre64
  • amistre64
two words harmonic mean is actually 4 words plus some to explain it :)
anonymous
  • anonymous
Lol, okay you also need to multiply that by \(\frac12\). This is a full answer!

Looking for something else?

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