A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books it buys. The store manager can use the equation P(x)=5x−1.5x to determine the store's profit, P(x), where x is the number of books that the store sells. Which statement about the book store is true based on the profit equation?A.The book store makes a profit of $5.00 for each hardback book that is sold.B.The book store makes a profit of $3.50 for each hardback book that is sold.C.The book store makes a profit of $4.50 for each hardback book that is sold.D.The book store sells each hardback book for $3.50

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general 11 months ago 2662

question 1Solve the system of equations and choose the correct answer from the list of options. d + e = 15 −d + e = −5 Label the ordered pair as (d, e). A (0, 0) B (10, −5) C (5, 10)D (10, 5)question2A set of equations is given below: Equation S: y = x + 9 Equation T: y = 2x + 1 Which of the following steps can be used to find the solution to the set of equations?A x = 2x + 1B x + 9 = 2xC x + 1 = 2x + 9D x + 9 = 2x + 1Question 3A set of equations is given below: Equation C: y = 6x + 9 Equation D: y = 6x + 2 Which of the following options is true about the solution to the given set of equations?A One solutionB No solutionC Two solutionsD Infinite solutionsquestion 4Solve the system of equations and choose the correct answer from the list of options. 2x + y = −4 y = 3x + 2A negative 6 over five comma negative 8 over 5B negative 8 over 5 comma negative 6 over 5C negative 5 over 6 comma negative 11 over 5D negative 11 over 5 comma negative 6 over 5question 5A system of equations is given below: y = –2x + 1 6x + 2y = 22 Which of the following steps could be used to solve by substitution?A 6x + 2(−2x + 1) = 22B −2x + 1 = 6x + 2y C 6(−2x + 1) + 2y = 22 D 6(y = −2x + 1)

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general 11 months ago 6801

A study found that 3939​% of the assisted reproductive technology​ (art) cycles resulted in pregnancies. ​twenty-fourfour percent of the art pregnancies resulted in multiple births. ​(a) find the probability that a random selected art cycle resulted in a pregnancy and produced a multiple birth. ​(b) find the probability that a randomly selected art cycle that resulted in a pregnancy did not produce a multiple birth. ​(c) would it be unusual for a randomly selected art cycle to result in a pregnancy and produce a multiple​ birth? explain

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general 11 months ago 6466