Isadora bought 4 trees to plant in her backyard and spent no less than eighty-four dollars altogether. How many dollars could each tree have cost? Let t represent how many dollars each tree cost.
t is greater than eighty
t is greater than or equal to eighty
t is greater than twenty-one
t is greater than or equal to twenty-one
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OpenStudy (anonymous):
4 divide 4 is 1
OpenStudy (anonymous):
8 divided by 4?
OpenStudy (nincompoop):
\[4t \ge 84\]
OpenStudy (anonymous):
t is greater than or equal to eighty
OpenStudy (nincompoop):
the question is: how much could EACH tree cost?
meaning you will have to divide 4t by 4 and also 84 by 4
this gives you:
\[\frac{ 4t }{ 4 } \ge \frac{ 84 }{ 4 }\]
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OpenStudy (anonymous):
84 divided by 4 = 21
OpenStudy (nincompoop):
how about 4t/4?
OpenStudy (anonymous):
1
OpenStudy (nincompoop):
no...
OpenStudy (nincompoop):
4/4 is 1 but you have t
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OpenStudy (anonymous):
t = 21
OpenStudy (anonymous):
t > 21
OpenStudy (nincompoop):
NOT EQUAL. we are using inequality greater than or equal to, because in the original problem it says: spent no less than 84 dollars...
OpenStudy (anonymous):
\[t \ge 21\]
OpenStudy (nincompoop):
awesome
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