subject
Mathematics, 01.11.2019 00:31 sar70

Alec simplified expression below. he didn't check his work by submitting 3 for x he notice his two values we're not equa. the l expression give him an answer of 27 and then simplify expression give him an answer of 28 what was alex error when simplifying

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 21:40, calebhoover03
Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000
Answers: 2
image
Mathematics, 21.06.2019 21:50, jadea520
In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?
Answers: 1
image
Mathematics, 22.06.2019 01:00, sdwhitneyhillis
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
image
Mathematics, 22.06.2019 01:10, Yailynn598
You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?
Answers: 2
You know the right answer?
Alec simplified expression below. he didn't check his work by submitting 3 for x he notice his two v...

Questions in other subjects: