Geometry
7 Online
OpenStudy (mtwizzle420):
I really need help on this! Please anyone ?
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OpenStudy (mathmusician):
What is the question
OpenStudy (mtwizzle420):
OpenStudy (mtwizzle420):
I have this, that's all I can figure out though
OpenStudy (mtwizzle420):
@KendrickLamar2014
OpenStudy (mtwizzle420):
@Nnesha
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OpenStudy (joannablackwelder):
Yep, that looks good so far. Do you know the formula for area of a trapezoid?
OpenStudy (joannablackwelder):
Ah, you have it written at the top of the page. Can you find the areas of each of the trapezoids using the area formula?
OpenStudy (mtwizzle420):
I need help with that honestly
OpenStudy (joannablackwelder):
Let's look at the top trapezoid. What is the height?
OpenStudy (mtwizzle420):
165
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OpenStudy (joannablackwelder):
Great! And what are the lengths of the two parallel sides?
OpenStudy (mtwizzle420):
187.5 and 397.5
OpenStudy (joannablackwelder):
Great! Those are your b1 and b2. :-) Can you try plugging those numbers into the formula?
OpenStudy (mtwizzle420):
Yeah hold on one sec :)
OpenStudy (joannablackwelder):
Sure. :-)
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OpenStudy (mtwizzle420):
A=82.5(187.5+397.5) A=15,468.75+32,793.75 A=48,262.5
A=112.5(397.5+225) A=44,718.75+25,312.5 A=70,031.25
OpenStudy (joannablackwelder):
Great! :-) Any thoughts from here?
OpenStudy (mtwizzle420):
I was thinking adding the two sums
OpenStudy (joannablackwelder):
Sounds good. :-)
OpenStudy (mtwizzle420):
118,293.75
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OpenStudy (joannablackwelder):
Great! Any thoughts from here?
OpenStudy (mtwizzle420):
No now im lost
OpenStudy (joannablackwelder):
Ok, we are trying to find the cost of the land per square foot.
OpenStudy (joannablackwelder):
We have the cost of the land and the total square footage.
OpenStudy (joannablackwelder):
So, we can do the cost divided by the square footage to get the cost per square foot. :-)
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OpenStudy (mtwizzle420):
3.83092936 so yes he could buy it because its less than 4$ correct? :)
OpenStudy (mtwizzle420):
How would I check this?
OpenStudy (joannablackwelder):
Yep, that's great! :-)
OpenStudy (joannablackwelder):
Hm, how to check it? Let me think.
OpenStudy (joannablackwelder):
I'm not really sure of a good way to check it, but what you did looks great! :-)
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OpenStudy (mtwizzle420):
Thank you !!!!
OpenStudy (joannablackwelder):
You're welcome. :-)