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krok68 [10]
4 years ago
9

Solve for k. k/4 + 8 = 12 ​

Mathematics
1 answer:
KengaRu [80]4 years ago
4 0

Answer:

k = 16

Step-by-step explanation:

To solve this we must isolate k.  Let's first simplify this equation by subtracting   8 from both sides:

k/4 = 4

Next, remove the fraction by multiplying both sides by 4:

k = 16

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A parking lot has 7 red cars out of a total of 35 cars. What percent of the cars in the parking lot are red? Enter your answer i
atroni [7]

Answer:

20%

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which one is it A. B. C. or D.
Semmy [17]
La respuesta correcta el la letra D

4 0
3 years ago
PLEASEE help I’m really confused
maksim [4K]

Answer:

\frac{13}{\sqrt5}

Step-by-step explanation:

To get the shortest distance from a point to a line, we need to find a perpendicular line that intersects the line and also intersects the line. We know the slope of the line will be 1/2, but to find the y-intercept, we can just plug it into the point because we already know it will be on the line.

-3 = 1/2(-2)+c

-3 = -1+c

-2 = c

Now, we know the slope and the y-intercept, and since it will intersect the other line, we can set it equal to the other lines formula:

1/2x-2 = -2x+6

5/2x=8

x=16/5

Now, plugging this value of x into any of the equations, we can find the y-coordinate:

16/5(1/2)-2 = -2/5

We have the point (16/5, -2/5)

Now, we need to find the distance between (-2, -3) and (16/5, -2/5)

Plugging into distance formula:

\sqrt{(-2 - \frac{16}{5})^2+(-3-(-\frac{2}{5}))^2}\\=  \sqrt{(-5.2)^2+(-2.6)^2}\\= \sqrt{33.8}

= =\frac{13}{\sqrt5}

3 0
3 years ago
Read 2 more answers
75% of all undergraduates are in the College, 10% are in Engineering, 8% are in Commerce, 4% are in Nursing, and 3% are in Archi
Hunter-Best [27]

Answer:

the probability a randomly selected student is a third-year that they are in the College is 0.1743

Step-by-step explanation:

Given information

75% College = C = 0.75

10% are in Engineering, Eng = 0.1

8% are in Commerce, Com = 0.08

4% are in Nursing, Nurs = 0.04

3% are in Architecture, Arch = 0.03

21% Third year student = S = 0.21

21% in the College = 0.21

25% in Engineering = 0.25

49% in Commerce = 0.49

57% in Nursing = 0.57

33% in Architecture = 0.33

P(SlC) = 0.75 x 0.21 = 0.1575 is the probability of third year student in college

P(SlEng) = 0.1 x 0.25 = 0.025

P(SlCom) = 0.08 x 0.49 = 0.0392

P(SlNurs) = 0.04 x 0.57 = 0.0288

P(SlArch) = 0.03 x 0.33 = 0.0099

P(S) = P(SlEng) + P(SlCom) + P(SlNurs) +P(SlArch)

       = 1- (0.025 + 0.0392 + 0.0288 + 0.0099)

       = 0.9031

The probability of third year student in college is

P(ClS) = P(SlC) / P(S)

           = 0.1575 / 0.9031

           = 0.1743

3 0
4 years ago
What is the equation of the line with a slope of -1/2 that passses through the points (6,6)?
ivann1987 [24]
M = slope

Lets put this in point slope form, and slope intercept form. 

y - 6 = -1/2(x - 6)
y - 6 = -1/2x + 3
    + 6            + 6

y = -1/2x + 9 

Answer:  y = -1/2x + 9 
8 0
4 years ago
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