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How do I set this problem up? I thought only fractions and whole numbers could be slopes...I didn't know percentages could be used for slope too....please explain how to solve this word problem. Thanks.

When designing the FleetCenter arena in Boston, architects designed the ramps leading up the entrances so that circus elephants would be able to walk up the ramps. The maximum grade (or slope) that an elephant will walk on is 13%. Suppose that such a ramp was constructed with a horizontal run of 150 ft. What would be the maximum vertical rise the architects could use?

2007-02-08 15:08:46 · 4 answers · asked by World Expert 1 in Education & Reference Homework Help

P.S. "VERONICA IS HERE" is the elephant being referred to in my question. Hope that helps.

2007-02-08 15:28:00 · update #1

4 answers

If it's expressed as a percentage (rather than in degrees), it usually means the "rise" over the "run." (There are actually two possible meanings, but at low percentages, they're nearly equivalent.)

For the 13% grade, that means it goes up 13 feet for every 100 feet out. For 150 feet out, that means a maximum of 19.5 feet (13 over 100 times 150) up.

2007-02-08 15:22:43 · answer #1 · answered by Anonymous · 2 0

i think it is 13 percent of 90 degrees
in this case, take the angle, find tangent of it, and then multiply it by 150 to find the answer

2007-02-08 15:15:16 · answer #2 · answered by Anonymous · 0 2

Listen,

This is how you solve the problem

First: use your head
Second: use your head and hand
Third: start thinking
Fourth:stop asking people
Fifth: WORK IT OUT YOURSELF

with love,
a friend

LOL EVERYONE

2007-02-08 15:15:52 · answer #3 · answered by VdogNcrck 4 · 0 2

SLOPE = rise/run......

You know the slope and the run.....

2007-02-08 15:17:24 · answer #4 · answered by Professor K 4 · 0 0

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