Mathematics, 27.05.2020 19:57 daniiltemkin20
15. In a class test, 3 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and no mark for not attempting any question.
i) Rita scored 20 marks. If she has got 12 correct answers, how many questions has
she attempted incorrectly?
ii) Savita scored (-5) marks though she has got 7 correct answers. How many questions
has she attempted incorrectly?
Answers: 2
Mathematics, 21.06.2019 16:00
()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31
Answers: 1
Mathematics, 21.06.2019 18:00
Need on this geometry question. explain how you did it.
Answers: 1
Mathematics, 21.06.2019 19:00
What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2
Answers: 2
15. In a class test, 3 marks are awarded for every correct answer and (-2) marks are awarded for eve...
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