- anonymous

|dw:1328069828540:dw|
The perimeter of the triangle shown is 370 meters. Find the length of each side. __meters,__meters, and __meters (type in integers or decimals, Use Ascending order)

- schrodinger

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- anonymous

|dw:1328070090110:dw|

- anonymous

Hi jmallis, so can I assume that this is a right triangle?

- anonymous

No looks more like|dw:1328070313875:dw|

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## More answers

- anonymous

Got it, so, do you know how to set up your equation?
We know the perimeter is 370 meters, so how do you think we'd set that up?

- anonymous

370= 5x+ x +(6x-2)?

- anonymous

Great job! So, now you can get rid of the parentheses (it's not relevant in addition) and add your factors.

- anonymous

\[5x + x + 6x -2 = 12x -2 = 370\]

- anonymous

Does that make sense? So now you just have an equation with:
\[12x - 2 = 370\]

- anonymous

Ok makes sense so far.

- anonymous

Great, so do you know how to solve that equation you have left?

- anonymous

This is what I do not understand.

- anonymous

Ok, do you have much experience with algebra?

- anonymous

Here and there.

- anonymous

You plus 2 from 270?

- anonymous

370*

- anonymous

Exactly! You add 2 to 370. So now you have:
\[12x = 372\]

- anonymous

You know the next step?

- anonymous

12x/12= 372/12?

- anonymous

Brilliant, way to go - so 372 / 12 = 31. Which is your X

- anonymous

x=31

- anonymous

So now what you need to do is put that x back into your three lengths from the original triangle, put em in order, and voila - you've got your answer

- anonymous

In order meaning smallest to largest?

- anonymous

Correct - you can put what you get here if you want so I can make sure I'm getting the same thing

- anonymous

5, 155, 184
?

- anonymous

Well, let's go through them. You have 3 separate lenghts: x, 5x, and 6x-2. So, replace X with 31 for all of these

- anonymous

Hint: You got the second two right ;)

- anonymous

darn it 31

- anonymous

Haha, no worries. And great job jmallis - appreciate you sticking in there and getting it. Great work!

- anonymous

Thanks

- anonymous

Can you help me with another problem I only have like 9 minutes battery life on my laptop. Lakeview is 85 miles from Springfield. Irania must go to the law library in Springfield to get a document for the law form for which she works. Find how long it takes her to drive round trip if she averages 54 mph.
Takes approximately __ hours and __minutes

- anonymous

Ok, so - 54 mph. So, take the total mileage (85 miles) and divide that by 54 mph. That gives you the approximate time to get there. REMEMBER though that this is one-way, you need to multiply your answer by 2 to get the round trip. Hopefully you get this in time...

- anonymous

so whats hours and minutes? and thank-you again

- anonymous

hey, so the key is that when you divide, you'll come up with a decimal. You need to multiply that decimal by 60 - in order to give you the mins

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