anonymous
  • anonymous
A cheetah's sprinting speed is 61 miles per hour less than three times a zebra's running speed. A cheetah can sprint 68 miles per hour. Find the zebra's running speed.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
OK... This problem talks about a cheetah's speed and a zebra's speed. Does the problem say a cheetah's speed IS or a zebra's speed IS
anonymous
  • anonymous
Only that a cheetah can sprint 68 miles per hour
anonymous
  • anonymous
If the zebra can sprint at a speed of x, then the cheetah can sprint at a speed of 3x-61. If the cheetah sprints at a speed of 68mph, then 68=3x-61.

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anonymous
  • anonymous
To solve for the zebra's speed, you solve for x.
anonymous
  • anonymous
Read the first 5 or 6 words of the problem. Stay with me here, I will teach you how to do these... It says a cheetah's sprinting speed IS.... do you see that
anonymous
  • anonymous
you can't solve for x because by then the answer will be 43 which is < 61, they said that the zebra is 3 times faster :)
anonymous
  • anonymous
3z - 61 is the formula, if cheeta = z = 61 then zebra = 3(61)
anonymous
  • anonymous
if cheetah = 68 mi/hr then: zebra = z = 3(68) = 204 mi/hr
anonymous
  • anonymous
blexting, you may find purchase in starting a thread to explain the process and having questions asked there if that was your intention. I'll quit passing out answers.
anonymous
  • anonymous
Correct me if I'm wrong ^_^
anonymous
  • anonymous
The cheetah sprints at 61mph less than three times the zebras speed. That shows that the cheetah is less than three times as fast as the zebra, not that the zebra is three times as fast as a cheetah.
anonymous
  • anonymous
no the cheetah is 3 times faster .
anonymous
  • anonymous
Lil B are you still there?
anonymous
  • anonymous
explain blexting and he'll come here and check later ^_^
anonymous
  • anonymous
Right. Which means for a zebra of speed Z, the cheetah is a speed of 3Z. However, the cheetah is 61mph less than 3Z, so it runs at a speed of 3z-1.
anonymous
  • anonymous
dear, the zebra will run at 3z, while the cheetah will have a speed that is less than that of a zebra
anonymous
  • anonymous
But that is where you are wrong. The cheetah's sprinting speed is some value less than three times that of the zebra, not that the zebra is in any way three times as fast as a cheetah.
anonymous
  • anonymous
After reading what everyone as written, Im still a bit hazey on how to express my equation.
anonymous
  • anonymous
lol, don't worry Lil B , we're just discussing ^_^
anonymous
  • anonymous
OK.. I just noticed that you had problems on one like this before so I thought I would teach you how to do these.
anonymous
  • anonymous
I do greatly appreciate everyone's help!
anonymous
  • anonymous
blexting, please explain it to him if you can :)
anonymous
  • anonymous
A cheetah's sprinting speed is 61 miles per hour less than three times a zebra's running speed. This statement converts to an algebraic expression: C=3Z-61. The 3Z represents "three times that zebra's speed" A cheetah can sprint 68 miles per hour. Find the zebra's running speed. So we know that C=61. Then our formula becomes: 61=3Z-61. And now it's an algebra problem.
anonymous
  • anonymous
C=68, but yes.
anonymous
  • anonymous
Ack. Sorry about my typos. Doesn't happen to me when I actually write the problem out. :)
anonymous
  • anonymous
Since C=68, then the formula we discovered C=3Z-61 becomes 68=3Z-61
anonymous
  • anonymous
Lil B, Blexting is explaining the process that we use to get these formulas in another thread that I started.
anonymous
  • anonymous
Ok! thanks guys! @jcntrl: Im with you!

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