1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lady_Fox [76]
3 years ago
8

What is the value of x in the equation 3x-4y=65, when y=4?

Mathematics
2 answers:
yanalaym [24]3 years ago
6 0
Answer: x = 27

Explanation:

3x - 4y = 65
3x - 4(4) = 65
3x - 16 = 65
3x = 65 + 16
3x = 81
x = 81/3
x = 27
Goshia [24]3 years ago
3 0

Hello there! :)

Answer:

\huge\boxed{x = 27}

Given the equation:

3x - 4y = 65 where y = 4

Substitute in 4 for "y":

3x - 4(4) = 65

Simplify:

3x - 16 = 65

Add 16 to both sides:

3x - 16 + 16 = 65 + 16

3x = 81

Divide both sides by 3:

3x/3 = 81/3

x = 27.

You might be interested in
Anyone know the right answer?
nikklg [1K]

The compass heading is 242.5deg

7 0
3 years ago
Read 2 more answers
What Is The Answer<br> 2/3 - 4/12 =
erica [24]
2/3 = 8/12. So the answer is 4/12
8 0
2 years ago
Read 2 more answers
Nate has a bag containing 3 red, 2 blue, 4 yellow, and 3 green marbles. If he randomly chooses one marble from the bag, what is
SVEN [57.7K]

<u>The probability that the marble will be blue if he shakes the bag and when you puts his hand into the bag, to move it around and probably he'll get the blue marble.</u>

<em>Hopefully, it correct.... :)</em>

4 0
2 years ago
Cory is a bird watch he estimated that 30% of the birds American , 20 % ne eyed , and 20 designs n simulation Let , 1 and 2 repr
sleet_krkn [62]

Answer:

I believe the answer is C. 0.75

Step-by-step explanation:

7 0
3 years ago
Problem: A piece of farmland is a watering plot of land in a circular pattern. A sewer line needs to be installed from a new hou
Musya8 [376]

The entry and exit points of (2, 3), and (12, 6), and 200 ft. extension of the sprinkler system gives;

(1) The sewer line crosses the farmland at (6.53, 4.36), and (8.48, 4.9)

(2) The longest installable sprinkler system is approximately 172.4 feet

<h3>How can the points where the line crosses the farmland be found?</h3>

1. The slope of the sewer line is found as follows;

  • m = (6 - 3)/(12 - 2) = 3/10 = 0.3

The equation of the sewer line can be expressed in point and slope form as follows;

  • (y - 3) = 0.3×(x - 2)

y = 0.3•x - 0.6 + 3

y = 0.3•x + 2.4

The equation of the circumference of the sprinkler can be expressed as follows;

  • (x - 8)² + (y - 3)² = 2²

Therefore;

(x - 8)² + (0.3•x + 2.4 - 3)² = 2²

Solving gives;

x= 6.53, or x = 8.48

y = 0.3×6.53 + 2.4 = 4.36

y = 0.3×8.48 + 2.4 = 4.9

Therefore;

  • The sewer line crosses the farmland at (6.53, 4.36), and (8.48, 4.9)

2. When the farmland does not cross the sewer line, we have;

sewer line is tangent to circumference of farmland

Slope of radial line from center of the land is therefore;

m1 = -1/0.3

Equation of the radial line to the point the sewer line is tangent to the circumference is therefore;

y - 3 = (-1/0.3)×(x - 8)

Which gives;

y = (-1/0.3)×(x - 8) + 3

The x-coordinate is therefore;

0.3•x + 2.4 = (-1/0.3)×(x - 8) + 3

  • x ≈ 7.5

  • y = 0.3 × 7.5 + 2.4 ≈ 4.65

The longest sprinkler system is therefore;

d = √((7.5 - 8)² + (4.65 - 3)²) ≈ 1.724

Which gives;

  • The longest sprinkler system is 1.724 × 100 ft. ≈ 172.4 ft.

Learn more about the equation of a circle here:

brainly.com/question/10368742

#SPJ1

3 0
2 years ago
Other questions:
  • A display of cans in a grocery store consists of 15 rows. There are 45 cans on the bottom , 42 cans on the next row, and so on,
    6·1 answer
  • On the photo /picture
    7·1 answer
  • Pls help!!!!!! I need the answer as fast as possible ​
    6·1 answer
  • -4.75 = z/2<br> It's not that urgent, but I would appreciate it if you helped me!
    13·1 answer
  • a hole in the ground is 3 feet deep a pile of dirt next to the hole is 3 feet high which list best uses the values -3,0, and 3 t
    8·1 answer
  • 47​, 47​, 26​, 73​, 61<br><br> What is the mean?
    11·2 answers
  • I need help need help with Geometry
    9·1 answer
  • Using the equation y = 8x , what would y be if x = 2
    14·2 answers
  • Which of the following is another way to express the problem 1 - (-7)? 01-7 0 1+(-7) 0-1 + (-7) 0-1+7​
    15·1 answer
  • PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!