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08.09.2019 •
Mathematics
You are choosing between two different cell phone plans. the first plan charges a rate of 24 cents per minute. the second plan charges a monthly fee of $44.95 plus 12 cents per minute. let t be the number of minutes you talk and c1 and c2 be the costs (in dollars) of the first and second plans. give an equation for each in terms of t, and then find the number of talk minutes that would produce the same cost for both plans. (round your answer to one decimal place)
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Ответ:
4
Step-by-step explanation:
5x+3=23
Subtract 3 from both sides
5x+3-3=23-3
5x=20
Divide both sides by 5
5x/5=20/5
X=4