A graduate school plans to increase its enrollment capacity by developing its facilities and the programs it offers. Their enrollment capacity this year was 120 graduate students. Beginning next year, the school plans to triple this number every year, with a target enrollment capacity of 3,240 students.
Which equation represents this situation, and after how many years, t, will the graduate school be able to achieve its target enrollment capacity?
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hj
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120 360 ------ 3240 is an ap
so a=120 and d=240 and An=3240
An=a+(n-1)d
3240=120+(n-1)240
3240=120+240n-240
3240=240n-120
3240+120=240n
3360=240n
n=14
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