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prince2195
07.07.2019 •
Mathematics
The cost of a hamburger is $2.50. each additional hamburger cost $2.00. sully wrote this explicit rule to explain the sequence of costs: f(n) = 2 + 2.5(n-1). using the rule, he found the cost of 12 hamburgers to be 29.50. is this number correct?
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Ответ:
Yes, the number is correct.
Step-by-step explanation:
The cost of a hamburger is $2.50.
Each additional hamburger cost $2.00.
Sully wrote this explicit rule to explain the sequence of costs:
Using the rule, he found the cost of 12 hamburgers to be 29.50.
Lets check by putting n = 12.
=![2+2.5(11)](/tpl/images/0060/2742/77290.png)
=![2+27.5](/tpl/images/0060/2742/2df5b.png)
= $29.50
So, yes Sully is correct.
Ответ:
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Step-by-step explanation: