Answer:12c
Step-by-step explanation:
hey thays ort
The answer is JN. A way I try to remember a line segment is that they are like two eyes with a line in the middle (sorry they make the answer 20 or more characters)
Answer:
221640
Work:
516090/4 -129,022.5
221640/4-55,410
814550/4- 203,647.5
(74 + 78 + 70 + x) / 4 = 80
Divide each number by 4.
18.5 + 19.5 + 17.5 + x = 80
Add the numbers you know so far.
18.5 + 19.5 + 17.5 = 55.5
You need 24.5.
Now, since we divided all the others by 4, we have to multiply 24.5 by 4 to see what the exam score would be.
24.5 * 4 = 98.
To get an average of 80%, the student would need to get a 98 on their fourth exam.
