5272道题目5525 条题源记录 · 相同内容已合并
线性不等式与可行域挑战
\( y<−6x−21 \)
\( y>−4x−10 \)
For which of the following tables are all the values of x and their corresponding values of y solutions to the given system of inequalities?
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线性不等式与可行域进阶
A model estimates that a gray whale travels 74 to 79 miles each day during its migration. Based on this model, which inequality represents the estimated total number of miles, x, a gray whale could travel in 49 days of its migration?
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线性不等式与可行域进阶
A student needs at least 190 signatures from classmates to run for class president. The student collects 30 signatures on Monday and collects enough additional signatures on Tuesday to run for class president. Which inequality represents the number of additional signatures, s, that the student collects on Tuesday?
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线性不等式与可行域挑战
The shaded region shown represents the solutions to \( rx+ty\ge-44 \), where r and t are constants. What is the value of\( r+t \) ?
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线性不等式与可行域进阶
A school is ordering tablet computers for its students. The tablets cost $164 each, and 6% tax is added to the total cost of the order. If the school can spend no more than 44,800 on the tablets, including tax, what is the maximum number of tablets that the school can order?
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线性不等式与可行域挑战
The shaded region shown represents the solutions to \( rx+ty≥−36 \), where r and t are constants. What is the value of \( r+t \) ?
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线性不等式与可行域进阶
In the xy-plane, which of the following does NOT contain any points that are part of the solution set to \( 2x−6y>12 \) ?
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线性不等式与可行域进阶
\( y\le5x-21 \)
Which point \( \left(x,\ y\right) \) is a solution to the given inequality in the xy-plane?
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线性不等式与可行域进阶
A shopper is purchasing oranges that cost $0.67 each. If the shopper has a coupon for $2 off the entire purchase and there is no sales tax. Which inequality represents the number of oranges, x, that the shopper can purchase for no more than $12?
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线性不等式与可行域挑战
In a set of four consecutive odd integers, where the integers are ordered from least to greatest, the first integer is represented by x. The product of 28 and the third odd integer in the set is at most the value of 50 less than the sum of the first and fourth odd integers in the set. What is the greatest possible value of x?
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线性不等式与可行域进阶
A team of researchers plans to spend no more than 310 hours in total collecting observation data for two projects. For one of the projects, the team will observe at least 13 penguins and will spend 5 hours observing the behavior of each penguin. For the other project, the team will observe at least 16 seals and will spend 6 hours observing the behavior of each seal. Based on this plan, what is the maximum number of penguins the team can observe?
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线性不等式与可行域进阶
\( y<−4x+12 \)
Which point (x, y) is a solution to the given inequality in the xy-plane?
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