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 > 9x -5
For which of the following tables are all the values of x and their corresponding values of y solutions to the given inequality?
原库参考解析
线性不等式与可行域进阶
A small business owner budgets $2,400 to purchase books each year. The owner must purchase a minimum of 225 books for the year to maintain the discounted pricing. If the owner pays $4.20 per book to purchase paperback books and $11.60 per book to purchase hardcover books, what is the maximum number of hardcover books the owner can purchase to stay within the budget and maintain the discounted pricing?
原库参考解析
线性不等式与可行域进阶
In the xy-plane, which of the following does NOT contain any points (x, y) that are solutions to 7x+4y>12?
原库参考解析
线性不等式与可行域进阶
ln December 2017, the lowest temperature recorded in a certain city was 40 degrees Fahrenheit (°F) and the highest temperature recorded was 90 °F. Which inequality is true for all values of t, where t represents any temperature, in °F, recorded in the city in December 2017?
原库参考解析
线性不等式与可行域进阶
In December 2017, the lowest temperature recorded in a certain city was 40 degrees Fahrenheit (°F) and the highest temperature recorded was 90°F. Which inequality is true for all values of t, where t represents any temperature, in °F, recorded in the city in December 2017?
原库参考解析
线性不等式与可行域进阶
A number x is at least twice the value of a number y. If the value of y is 65, which inequality represents the possible values of x?
原库参考解析
线性不等式与可行域进阶
A number x is less than 2 more than \( \frac{1}{7} \) times the value of a number y. If y is an integer and x = 9, what is the least possible value of y?
原库参考解析
线性不等式与可行域挑战
In the xy-plane, which of the following does NOT contain any points that are part of the solution set to \( 3x−7y>21 \) ?
原库参考解析
线性不等式与可行域进阶
A model estimates that a gray whale travels 73 to 78 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 48 days of its migration?
原库参考解析
线性不等式与可行域挑战
\( y<−6x−16 \)
\( y>−4x−10 \)
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?
原库参考解析
线性不等式与可行域进阶
A biologist is designing a study to observe the behavior of male and female amethyst-throated hummingbirds. According to the study's design, at least 91 hummingbirds will be observed, and the positive difference between the number of males, x, and the number females, y, will not exceed 8. Which of the following systems of inequalities represents this situation?
原库参考解析
线性不等式与可行域进阶
The shaded region shown in the graph represents all the solutions to which inequality?
原库参考解析
