A line doesn’t have an endpoint
The number of points Marco needs to bring his average up to 90% is 15points.
If there's a possible 25 possible points, and Marco has taken 5 quizzes;
Evidently, each quiz has weighs 5 points.
Mathematically;
![\frac{21 + 5x}{5(5 + x)} \times 100\% = \frac{90}{100}](https://tex.z-dn.net/?f=%20%5Cfrac%7B21%20%2B%205x%7D%7B5%285%20%2B%20x%29%7D%20%20%5Ctimes%20100%5C%25%20%3D%20%20%5Cfrac%7B90%7D%7B100%7D%20)
- 2100 + 500x = 2250 + 450x
x = 3.
Therefore, he needs 5x points = 15 points to bring his average up to 90%.
Read more:
https://brainly.in/question/24249798
Answer:
-5/4
Step-by-step explanation:
the slope is the variable in front of x
y = mx + b
m = slope
b = y-int
Answer:
c. 137°
Step-by-step explanation: