Mathematics, 30.06.2019 15:30 lexiissmartberysmart
Breann solved the system of equations below. what mistake did she make in her work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2x) = 10 x − 10 + 4x = 10 5x − 10 = 10 5x = 20 x = 4 2(4) + y = 5 y = −3 (5 points) select one: a. she should have substituted 5 + 2x b. she combined like terms incorrectly, it should have been 4x instead of 5x c. she subtracted 10 from both sides instead of adding 10 to both sides d. she made no mistake
Answers: 1
Mathematics, 21.06.2019 19:00
What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2
Answers: 2
Mathematics, 21.06.2019 20:30
Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.
Answers: 2
Mathematics, 22.06.2019 00:30
What is the perimeter of an equilateral triangle if each side is (x+3)?
Answers: 1
Breann solved the system of equations below. what mistake did she make in her work? 2x + y = 5 x −...
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