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kondor19780726 [428]
3 years ago
13

You are studying for your final exam of the semester. up to this point, you received 3 exam scores of 67%, 68%, and 78℅. to rece

ive a grade of C in the class, you must have an average exam score between 70% and 79% for all 4 exams including the final.
Mathematics
2 answers:
scoray [572]3 years ago
4 0
(67 + 68 + 78 + x) / 4 = 70
(213 + x) / 4 = 70
213 + x = 70 * 4
213 + x = 280
x = 280 - 213
x = 67

(213 + x) / 4 = 79
213 + x = 79 * 4
213 + x = 316
x = 316 - 213
x = 103

lowest u can make is 67, highest u can make is 100
Ann [662]3 years ago
4 0

Answer: its 68,100 on plato

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The number of wrecks at a certain intersection varies directly as the number of cars that travel through the intersection. If th
Ierofanga [76]

The number of cars that have passed through the intersection is 245.

<h3>How many cars passed through the intersection?</h3>

Direct variation is when two variables move in the same direction. If one variable increases, the other variable increases.

The equation that represents direct variation is; c = wk

Where:

  • c = number of cars
  • w = number of wrecks
  • k = constant of proportionality

1085 = k31

k = 1085 / 31

k = 35

c = 7 x 35

c = 245

To learn more about direct variation, please check: brainly.com/question/27573249

#SPJ1

3 0
3 years ago
HELP PLEASE!!!!
TiliK225 [7]

When trying to solve a system of equations graphically, our focus is on identifying the coordinates of any point through which the graphs go. Look at the above graph: you'll see that the red and the blue graphs intersect at (0,2), and so (0,2) is a "solution" of that system of equations.

Here, we're asked to answer a different kind of question: "Is (2,0) a solution to the given system of equations?" Let's paraphrase that question: "Do both graphs go through (2,0)?" The answer: emphatically not. Neither graph goes through (2,0). Thus, (2,0) is not a solution to this system of equations.


6 0
3 years ago
PL = 10 PK = 8 L is a point of tangency. Segments PL and PN have a common point at P. Find the length KN. A) 4 B) 4.5 C) 5 D) 5.
trapecia [35]
B is the answer to this question.....
6 0
3 years ago
Read 2 more answers
PLEASE HELP
shepuryov [24]

Remember

  • Its a dilation so the ratio of corresponding sides remains same like before .

So

  • All trigonometric ratios are also same in both traingles

Or

\\ \rm\hookrightarrow \dfrac{AB}{BC}=\dfrac{XZ}{YZ}

  • Hence sine is equal
  • So all trigonometric functions are also equal

#B

  • cosX=Base/Hypotenuse
  • cosA=AC/AB

So

  • AC equal to 2.05
  • AB=5.59
7 0
3 years ago
1. The 4th, 5th, and 6th terms of an arithmetic sequence are 19, 23, and 27 respectively. What is the first
babymother [125]

Answer: 7

Step-by-step explanation: The only pattern in this sequence that I can see is addition by 4. Therefore, the 3rd term is 15, the 2nd is 11, the 1st is 7.

Please consider Brainliest.

8 0
2 years ago
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