Mathematics, 12.12.2019 22:31 heyhowdy
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).
Answers: 2
Mathematics, 21.06.2019 15:00, TheOneandOnly003
Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand
Answers: 3
Mathematics, 21.06.2019 20:50, hinsri
The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in
Answers: 1
Mathematics, 21.06.2019 22:30, lekepius3715
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
Harry had $32. he spent all the money on buying 3 notebooks for $x each and 4 packs of index cards f...
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