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
kipiarov [429]
4 years ago
12

Solve 5x + 2y = 7 10x + 4y = 14 (1 point)

Mathematics
2 answers:
FrozenT [24]4 years ago
8 0
In which type do u want it answer 
1- cramer rule
2- matrix inversion method
Snowcat [4.5K]4 years ago
6 0
5x + 2y = 7
-2 -2
5x = 5

10x + 4y = 14
-4. -4
10x=10
You might be interested in
4x^4+12x^2+8 solve ✖➖➕➗​
Vika [28.1K]

Step-by-step explanation:

Simplifying 4x4 + -12x2 + 8 = 0 Reorder the terms: 8 + -12x2 + 4x4 = 0 Solving 8 + -12x2 + 4x4 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(2 + -3x2 + x4) = 0 Factor a trinomial. 4((1 + -1x2)(2 + -1x2)) = 0 Factor a difference between two squares. 4(((1 + x)(1 + -1x))(2 + -1x2)) = 0 Ignore the factor 4.

Subproblem 1

Set the factor '(2 + -1x2)' equal to zero and attempt to solve: Simplifying 2 + -1x2 = 0 Solving 2 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x2 = 0 + -2 -1x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -1x2 = -2 Divide each side by '-1'. x2 = 2 Simplifying x2 = 2 Take the square root of each side: x = {-1.414213562, 1.414213562}

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Subproblem 3

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Solution

x = {-1.414213562, 1.414213562, -1, 1}

5 0
3 years ago
Help with this question, please!
labwork [276]

Answer:

Y Intercept: 0, 2.5

X Intercept: 3.5, 0

Explanation:

An Intercept is where a line crosses an axis. A Y Intercept is for the Y axis and the X intercept is for the X axis.

Also when writing coordinates, the x coordinate comes before the y one.

Hope this helps :)

8 0
2 years ago
What is the positive solution to the equation 2x^2+25=73
denpristay [2]
<h2>Answer: <u><em>I think it's 0.886  or its 3.386</em></u></h2><h2><u><em /></u></h2>

Step-by-step explanation:

<h2><u><em>Because  1. x =(5-√73)/4=-0.886</em></u></h2><h2><u><em>and the other one is 2. x =(5+√73)/4= 3.386 </em></u></h2>

<u><em></em></u>

4 0
3 years ago
PLEASE HELP, THANK YOU!:
Readme [11.4K]

The answer to question 1 is $8.10.

I got this by finding 18% of $45, which I assume is what the server's tax/tip is.

The answer to question 2 is 7.99.

I got this by finding 8.5 percent of 94 dollars, which is the tax.

Hope this helps, if not, comment below please!!!

:L

4 0
3 years ago
Please solve for x. x/16 = 9/2
VladimirAG [237]

Answer:

x = 72

Step-by-step explanation:

\frac{x}{16}=\frac{9}{2}  \\\\

Start by multiplying 16 to both sides

(\frac{16}{1}) * \frac{x}{16}  = (\frac{16}{1}) * \frac{9}{2}

16s on the left-hand cancel

x =(\frac{16}{1}) * (\frac{9}{2})

x =( \frac{144}{2} )

we can simplify that expression

x = 72

7 0
3 years ago
Other questions:
  • ... 3x – 32 = -7x + 28
    14·2 answers
  • Which of the following equations can be a harmonic on a string that is 10 cm long? Select all that apply. (three correct answers
    13·1 answer
  • Which equation has a constant of proportionality equal to 3? PLS HELP
    14·1 answer
  • An employee at an animal hospital is keeping track of all of the dogs that are currently in-house and whether they have received
    6·1 answer
  • 46/16 as a mixed number
    6·2 answers
  • On a certain hot​ summer's day, 611 people used the public swimming pool. The daily prices are $ 1.75 for children and $ 2.00 fo
    14·1 answer
  • Which ratio is equivalent to the ratio 2:5?
    14·1 answer
  • If you throw exactly two heads in three tosses of a coin you win $35. If not, you pay me $25. Find the expected value of the pro
    5·1 answer
  • Did i get any wrong? if did than plz correct me, if not then plz tell me, will mark brainliest ​
    11·1 answer
  • Write a polynomial function for f(2)=0 with a multiplicity of 2 and f(-1)=0
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!