Rob is crocheting scarves for a craft fair. He will give away the first 2 scarves and will sell the rest for $8 each. His scarves are very popular and people always buy all that he is willing to sell. Rob's goal is to earn at least $75. If n represents the number of scarves which Rob needs to crochet to meet his goal, which of the following inequalities best models the situation described above?Choose 1 answer:(A) 8n−2≥75(B) 8n≥75−2(C) 8(n−2)≥75(D) (8−2)n≥75
Q. Rob is crocheting scarves for a craft fair. He will give away the first 2 scarves and will sell the rest for $8 each. His scarves are very popular and people always buy all that he is willing to sell. Rob's goal is to earn at least $75. If n represents the number of scarves which Rob needs to crochet to meet his goal, which of the following inequalities best models the situation described above?Choose 1 answer:(A) 8n−2≥75(B) 8n≥75−2(C) 8(n−2)≥75(D) (8−2)n≥75
Initial Free Scarves: Rob gives away the first 2 scarves for free, so they do not contribute to his earnings. The scarves he sells are $8 each. If n represents the total number of scarves Rob crochets, then he will sell (n−2) scarves because the first 2 are free. The total earnings from selling (n−2) scarves at $8 each would be 8(n−2). Rob wants to earn at least $75, so the inequality should reflect that the earnings from the scarves sold should be greater than or equal to $75. The inequality that models this situation is $80.
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