Harry had $32. He spent all the money on buying 3 notebooks for $x each and 4 packs of index cards for $y each. If Harry had bought 5 notebooks and 5 packs of index cards, he would have run short of $18. A student concluded that the price of each notebook is $5 and the price of each pack of index cards is $1. Which statement best justifies whether the student's conclusion is correct or incorrect? The student's conclusion is incorrect because the solution to the system of equations 3x + 4y = 32 and 5x + 5y = 50 is (8, 2). The student's conclusion is incorrect because the solution to the system of equations 3x + 4y = 32 and 5x + 5y = 18 is (8, 2). The student's conclusion is correct because the solution to the system of equations 3x + 4y = 32 and 5x + 5y = 18 is (5, 1). The student's conclusion is correct because the solution to the system of equations 3x − 4y = 32 and 5x − 5y = 50 is (5, 1).

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general 8 months ago 8653

Which pair of statements correctly compares the two data sets?A. The difference of the means is 1. This value is less than half of the mean absolute deviation of either data set.B. The difference of the means is 1. This value is more than half of the mean absolute deviation of either data set.C. The difference of the means is 1. This value is 1 times the mean absolute deviation of either data set.D. The difference of the means is 1. This value is 2 times the mean absolute deviation of either data set.

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general 8 months ago 5818