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#### A jewelry artist is selling necklaces at an art fair. It costs $155 to rent a booth at the fair. The cost of materials for each necklace is$5.50. The artist is selling the necklaces at $14 each. The inequality 14𝑛 155 + 5.50𝑛 represents the situation in which the artist makes a profit. 280 viewed last edited 1 year ago Anonymous 0 a. Will the artist make a profit if she sells 16 necklaces? Show how you know. b. Write an inequality to show the number of necklaces, 𝑛, the artist must sell to make a profit. Show your reasoning Sahil Khan 0 a.. It is given that is costs$155 to rent a booth, and that the cost of each necklace is \$5.50.  Assuming that the artist sells 20 necklaces, we substitute n = 16 in the inequality to get

14 \cdot 16 \gt 155 + 5.50 \cdot 16

244 \gt 155 + 88

224 \ngtr 243

So, the artist does not make a profit when she sells 16 necklaces, since substituting n = 16, does not satisfy the given inequality.

b.

Solve the given inequality 14 n \gt 155 + 5.50 n  for n.

14 n - 5.50 n \gt 155

8.50 n \gt 155

n\ >18.235 .

Rounding it off to a whole number because the number of necklaces cannot be a decimal number, the artist must sell at least 19 necklaces to make a profit.