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
Wewaii [24]
3 years ago
11

Solution to this system of linear equation -6x=48-6y -4x=50-6y

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

\large\boxed{x=1,\ y=6\to(1,\ 6)}

Step-by-step explanation:

\left\{\begin{array}{ccc}-6x=48-6y&\text{change the signs}\\-4x=50-6y\end{array}\right\\\underline{+\left\{\begin{array}{ccc}6x=-48+6y\\-4x=50-6y\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=2\qquad\text{divide both sides by 2}\\.\qquad x=1\\\\\text{Put it ot the first equation:}\\-6(1)=48-6y\\-6=48-6y\qquad\text{subtract 48 from both sides}\\-54=-6y\qquad\text{divide both sides by (-6)}\\9=y\to y=6

You might be interested in
1/2 + 1/3= whats the answer
lubasha [3.4K]
Correct Answer: 0.8333
8 0
3 years ago
Read 2 more answers
Explain how comparing 645 and 738 is different from comparing 645 and 649
Phantasy [73]
Its different because when u add 645 and 738 it equals 1,382 and when u add  645 and 649 it equals 1,294 so 1,382 is the greater number and its different from 1,294<span />
6 0
3 years ago
You throw a ball up and its height h can be tracked using the equation h=2x^2-12x+20.
postnew [5]

<em><u>This problem seems to be wrong because no minimum point was found and no point of landing exists</u></em>

Answer:

1) There is no maximum height

2) The ball will never land

Step-by-step explanation:

<u>Derivatives</u>

Sometimes we need to find the maximum or minimum value of a function in a given interval. The derivative is a very handy tool for this task. We only have to compute the first derivative f' and have it equal to 0. That will give us the critical points.

Then, compute the second derivative f'' and evaluate the critical points in there. The criteria establish that

If f''(a) is positive, then x=a is a minimum

If f''(a) is negative, then x=a is a maximum

1)

The function provided in the question is

h(x)=2x^2-12x+20

Let's find the first derivative

h'(x)=4x-12

solving h'=0:

4x-12=0

x=3

Computing h''

h''(x)=4

It means that no matter the value of x, the second derivative is always positive, so x=3 is a minimum. The function doesn't have a local maximum or the ball will never reach a maximum height

2)

To find when will the ball land, we set h=0

2x^2-12x+20=0

Simplifying by 2

x^2-6x+10=0

Completing squares

x^2-6x+9+10-9=0

Factoring and rearranging

(x-3)^2=-1

There is no real value of x to solve the above equation, so the ball will never land.

This problem seems to be wrong because no minimum point was found and no point of landing exists

3 0
3 years ago
the table represents the cost of buying a small piece of land in a remote village since the year 1990
cricket20 [7]

Answer:Linear

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Is -9/4 rational. Please I need this now the thing said 20 characters long so I’m just gonna type. The best answer gets brainlie
mihalych1998 [28]

Answer:

no -9/4 is irrational

Step-by-step explanation:

vacsusvvsjshsvsh plz give brainliest

3 0
3 years ago
Other questions:
  • 2x+6y when X= 4/5 and y= 1/3
    13·2 answers
  • Celeste hiked 1.8miles in 0.75 hour. what is the average of rate of speed
    14·1 answer
  • If your income of $1500 increased by 15%, find the amount it has increased by
    9·2 answers
  • Find the value of x and y please
    5·1 answer
  • Simplify 25/100 and make another equivalent fraction
    13·2 answers
  • 25 Points!<br><br> The transformation from f to g represents a __________ stretch.
    14·1 answer
  • Determine whether the series is convergent or divergent by expressing sn as a telescoping sum. ∞ 4 n(n + 2) n = 1
    7·1 answer
  • Write an equation when the two angles together are supplementary. solve for x
    14·1 answer
  • Name
    12·2 answers
  • Please help me !! due today:(
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!