Mathematics, 26.07.2019 21:00 hey743358
Maya had $27. she spent all the money on buying 3 burgers for $x each and 2 sandwiches for $y each. if maya had bought 2 burgers and 1 sandwich, she would have been left with $11. a student concluded that the price of each burger is $5 and the price of each sandwich is $6. which statement best justifies whether the student's conclusion is correct or incorrect? 1) the student's conclusion is correct because the solution to the system of equations 3x + 2y = 11 and 2x + y = 16 is (5, 6). 2) the student's conclusion is incorrect because the solution to the system of equations 3x − 2y = 11 and 2x − y = 16 is (5, 6). 3) the student's conclusion is correct because the solution to the system of equations 3x + 2y = 27 and 2x + y = 16 is (5, 6). 4) the student's conclusion is incorrect because the solution to the system of equations 2x + 3y = 27 and x + 2y = 16 is (5, 6).
Answers: 1
Mathematics, 21.06.2019 13:30, tiniecisneros28
There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part
Answers: 1
Mathematics, 21.06.2019 15:00, ejcastilllo
Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?
Answers: 1
Maya had $27. she spent all the money on buying 3 burgers for $x each and 2 sandwiches for $y each....
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