To get an average score of 80% (out of four exams), a total of 4*80%=320% is needed, so the minimum required for the 4th test is 320-(75+97+60)=88.
To get an average score of 89% (out of four exams), a total of 4*89%=356% is needed, so the maximum required for the 4th test is 356-(75+97+60)=124, which is impossible.
So the next exam grade must range between 88 and 100 to get a grade b in the class.
Hoped I help! Mark brainly it would help<3
Answer:
28
Step-by-step explanation:
x-10+2=20
add -10 and 2 together to simplify the equation
x-8=20
add 8 to both sides to isolate x
x=28
hope this helped!
Answer:
The answer to your question is letter D
Step-by-step explanation:
Data
P1 (3, 10)
P2 (-1, 6)
Process
1.- Calculate the midpoints
Xm = (x1 + x2)/2
Ym = (y1 + y2)/2
x1 = 3 y1 = 10
x2 = -1 y2 = 6
Xm = (3 - 1)/2
= 2/2
= 1
Ym = (10 + 6)/2
= 16/2
= 8
2.- Write the coordinates of the center
C = (1, 8)
