Explain the Error: The cost of a hamburger is $2.50. Each additional hamburger costs $2.00. Sully wrote this explicit rule to explain the sequence of costs: ƒ(n)= 2 + 2.5(n- 1). Using this rule, he found the cost of 12 hamburgers to be $29.50. Is this number correct? If not, identify Sully’s error.

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

15 batches are the most you can make

step-by-step explanation:

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step-by-step explanation:

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