Mathematics, 20.07.2019 16:00 CaptnKragg
(08.05 hc) the work of a student to solve a set of equations is shown: equation a: y = 15 β 2z equation b: 3y = 3 β 4z step 1: β3(y) = β3(15 β 2z) [equation a is multiplied by β3.] 3y = 3 β 4z [equation b] step 2: β3y = 15 β 2z [equation a in step 1 is simplified.] 3y = 3 β 4z [equation b] step 3: 0 = 18 β 6z [equations in step 2 are added.] step 4: 6z = 18 step 5: z = 3 in which step did the student first make an error?
Answers: 1
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In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%
Answers: 1
(08.05 hc) the work of a student to solve a set of equations is shown: equation a: y = 15 β 2z equ...
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