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
Vlad1618 [11]
3 years ago
8

-3x - y = 0 and -8x +5y=7

Mathematics
1 answer:
andrezito [222]3 years ago
8 0

Answer:

-23x = 7

Step-by-step explanation:

-3x - y =0

×5. ×5 ×5

-15x -5y = 0

-8x +5y = 7

-15x -5y -0

-23x = 7

You might be interested in
Hi, I’m really confused if anyone could help me out that would mean a lot?:)
marusya05 [52]

Hey there! :)

Answer:

a) 32 sticks.

b) 5n + 2 sticks.

Step-by-step explanation:

Solve this by finding the pattern.

Pattern # 1 = 7 sticks.

Pattern #2 = 12 sticks

Pattern #3 = 17 sticks.

We can see an increase of 5 sticks within each. We can use this to write an equation:

f(n) = 7 + 5(n-1)

***Where n is the term number

You can simplify the equation to become:

f(n) = 7 + 5n - 5

f(n) = 5n + 2.

Use this equation to solve for pattern # 6:

f(6) = 7 + 5(n-1)

f(6) = 7 + 5(5)

f(6) = 7 + 25

f(6) = 32.

6 0
2 years ago
What is the equation of the line that passes through (-5, 0) and (4, 3)?
kotegsom [21]

Answer:

y = 1/3x + 5/3

Step-by-step explanation:

An equation contains a slope and y-intercept, in the form y = mx + b. To find the slope or m, you need to plug the coordinates into the slope formula.

y2 - y1/ x2 - 1

3 - 0/ 4 - (-5)

= 3 / 9

= 1/3

Now that we know the slope, we need to plug the values of x and y to find the y-intercept.

y = 1/3x + b

3 = 1/3(4) + b

3 = 4/3 + b

5/3 = b

The equation is y = 1/3x + 5/3

3 0
2 years ago
The combined weight of three basset hounds is 185 pounds. The two smaller dogs weigh the same. The difference between the larger
olga2289 [7]

Answer:

75 pounds

Step-by-step explanation:

(x) + (x) + (x+20) = 185

3x + 20 = 185

3x = 165

x = 55

Large dog = 55 + 20 = 75

5 0
3 years ago
Write an equation of the line that passes through 3,1 and 0,10
elena-14-01-66 [18.8K]

Answer:y = -3x + 10

Step-by-step explanation:

To find an equation of a line that passes through two points, we have to first find the slope between the two equation. We can do this by using the slope formula:

where (x₁, y₁) and (x₂, y₂) are the two points that we are finding the slope between.

Lets make (x₁, y₁) equal to (0, 10) and (x₂, y₂) equal to (3, 1). Now we plug them into the slope formula:

So the slope between the two points is -3.

From here, I would normally take one of the points given to us and plug in the point and slope into the point-slope form of a line and then simplify until we get it in slope-intercept form. But if you look carefully, the y-intercept is given to us as the point (0, 10). So we now know that the y-intercept of the line is 10. We can now take the y-intercept and the slope and plug it into the slope-intercept form of a line to get out equation:

y = mx + b

plug in -3 for m (the slope) and 10 for b (the y-intercept)

y = -3x + 10

So now we have our equation.

I hope you find my answer and explanation helpful. Happy studying. :)

3 0
2 years ago
your bank account has 75$ in it when you write checks for 10$,14$ and 23$. You then deposit 46$ and 47$. How much is in the acco
alexira [117]
There are 46 dollars left in the bank account
4 0
3 years ago
Other questions:
  • Can I draw a trapezoid with a long base of 15. A short base is 10. The left leg is 12 & the right leg is 12.5. The height is
    11·1 answer
  • Help me with both questions pleaseeeee
    6·1 answer
  • Emma works at a restaurant that shares any money earned from tips evenly amongst the staff. On a particular night, Emma was paid
    8·1 answer
  • - -3/4 x (-12) equal to
    5·2 answers
  • Which ha a faster average rate 200 meters in 25.98 seconds or 100 meters in 12.58 seconds
    9·1 answer
  • Hello! Some assistance with this question would be really helpful (:
    13·1 answer
  • During a charity walk, lunch was served from 12:00 PM until 2:10 PM. How long was lunch served?
    11·2 answers
  • (5x)/7 - x/14 = 9/7 solve for the unknown value this is a linear equation​
    8·1 answer
  • A survey of all planet Umpt found that 36 beings preferred dubble juice to all the other juices. If 40 being were surveyed all t
    14·1 answer
  • Given this unit circle
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!