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Question
Math
Posted 5 months ago
Huang Yi works as a paleontologist and a sculptor.
Let PP represent the number of months Huang Yi must work as a paleontologist and SS represent the number of months she must work as a sculptor to make at least $50,000\$ 50,000.
5500P+4500S50000
5500 P+4500 S \geq 50000


Huang Yi worked for 6 months as a paleontologist this year. What is the minimum number of months that she must work as a sculptor to reach her goal?

Choose 1 answer:
(A) Huang Yi must work as a sculptor for at least 3 months.
(B) Huang Yi must work as a sculptor for at least 4 months.
(c) Huang Yi must work as a sculptor for at least 5 months.
(D) Huang Yi must work as a sculptor for at least 6 months.
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Answer from Sia
Posted 5 months ago
Solution by Steps
step 1
Substitute the value of PP with 6 into the inequality 5500P+4500S500005500P + 4500S \geq 50000
step 2
Calculate the product of 5500 and 6: 5500×6=330005500 \times 6 = 33000
step 3
Rewrite the inequality with the calculated product: 33000+4500S5000033000 + 4500S \geq 50000
step 4
Subtract 33000 from both sides of the inequality to solve for SS: 4500S50000330004500S \geq 50000 - 33000
step 5
Calculate the difference on the right side of the inequality: 5000033000=1700050000 - 33000 = 17000
step 6
Divide both sides of the inequality by 4500 to isolate SS: S170004500S \geq \frac{17000}{4500}
step 7
Simplify the fraction to find the minimum value of SS: S349S \geq \frac{34}{9}
step 8
Since SS must be a whole number of months, round up 349\frac{34}{9} to the next whole number, which is 4
Answer
Huang Yi must work as a sculptor for at least 4 months.
Key Concept
Solving inequalities with a single variable
Explanation
To find the minimum number of months Huang Yi must work as a sculptor, we substitute the known value for PP into the inequality, simplify, and solve for SS. Since SS represents whole months, we round up to the nearest whole number.

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