Layla had the higher score by 20 points.
Step-by-step explanation:
Given,
Points for correct answer = 10 points
Points for incorrect answer = 20 points
Loss means subtraction;
Therefore,
Total points of Ji = Correct answers*10 - Incorrect answers*20
Total points of Ji = 7*10 - 3*20
Total points of Ji = 70 - 60
Total points of Ji = 10 points
Total points of Layla = Correct answers*10 - Incorrect answers*20
Total points of Layla = 5*10 - 1*20
Total points of Layla = 50 - 20
Total points of Layla = 30 points
Difference = Points of Layla - Points of Ji
Difference = 30 - 10 = 20 points
Layla had the higher score by 20 points.
Keywords: multiplication, subtraction
Learn more about subtraction at:
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b) (m^6)^-2/3
c) (3x^-4y^5)/((2x^3y^-7))^-2
Answer:
89.84375
Step-by-step explanation:
Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.
To find weighted mean.
Here weights can be considered as number of majors in each subject
Weighted total = 1350+595+930 = 2875
Weighted mean = weighted total/total students
Answer:
equilateral triangle is always all acute nothing else
Answer:
Acute triangles or also called as acute-angled triangles
x-5/x<4
Answer: Yes, the given sequence is geometric with common ration 2.
Step-by-step explanation: The given sequence is:
6, 12, 24, 48, . . ..
We are to check whether the above sequence is geometric or not. If it is geometric, we are to find the common ratio.
Geometric sequence - a sequence of numbers where each term is found by multiplying by a constant to the preceding term. This constant is called the common ratio, r.
The consecutive terms of the given sequence can be written as:
We can see that
Therefore, each term is formed by multiplying 2 to the preceding term.
Thus, the given sequence is a geometric sequence with common ratio 2.