Given that the score of the student on the quiz was 25c - 10(15 - c)
It can be seen that the first term of expression for her score (i.e. 25c) shows that 25 marks were awarded to each correct answer.
The second term of the expression (i.e. 10(15 - c)) represent that 10 marks were deducted from each wrong answer.
Thus, the number of wrong answers is 15 - c.
The sum of the correct answers and the wrong answers gives the total number of questions in the quiz.
Thus, the total number of questions in the quiz is given by 15 - c + c = 15.
Therefore, there are 15 questions in the quiz.
Answer:
1
Step-by-step explanation:
a)2 times 1 and then times 2 become (2+4) then 6 ÷ 6 (because 2 plus 4)
Answer:
None of the above
Step-by-step explanation:
-9 tells the distance between her hand and the keys
Answer:
Slope of the line is 
.
Step-by-step explanation:
Given points are:
(10, 3) and (7, 11)
Here,
x1 = 10 and y1 = 3
x2 = 7 and y2 = 11
Slope of a line is given by
Therefore,
Slope of the line is .
Answer:
Your welcomeeee :)
Step-by-step explanation:
When two variables correlate and when the value of one increases as the value of the other decreases we say the relationship between both variables shows a negative correlation
