Question

حل النظام open curly brackets table attributes columnalign left end attributes row cell 4 x minus 5 y equals 9 end cell row cell negative 8 x plus 10 y equals 18 end cell end table close

170

likes
851 views

Answer to a math question حل النظام open curly brackets table attributes columnalign left end attributes row cell 4 x minus 5 y equals 9 end cell row cell negative 8 x plus 10 y equals 18 end cell end table close

Expert avatar
Hank
4.8
105 Answers
Solution:
1. Given system of equations:
* 4x - 5y = 9
* -8x + 10y = 18

2. Choose a method to solve the system. Here, we will use the elimination method:
* Multiply the first equation by 2 to match the coefficients of x:
(4x - 5y = 9) \times 2 \Rightarrow 8x - 10y = 18

3. Now add this equation to the second equation to eliminate x:
8x - 10y = 18
-8x + 10y = 18
----------------------------------------
0 = 36

4. The equation 0 = 36 is false, indicating there is no solution.

Therefore, the system of equations is inconsistent.

Frequently asked questions (FAQs)
Math Question: Find the 4th order derivative of f(x) = 3x^5 + 2x^3 - 4x^2 + 6x - 1.
+
What is the condition of congruence for two triangles with sides of lengths a, b, c and x, y, z?
+
What is the area of a triangle with base 6.4 units and height of 9.2 units?
+
New questions in Mathematics
The random variable Y is defined as the sum between two different integers selected at random between -4 and 2 (both included). What are the possible values of the random variable Y? What is the value of P(Y=-3)? And whether it is less than or equal to -5?
A drawer contains three pairs of white socks, five pairs of black socks and two pairs of red socks. Caden randomly selects two pairs of socks on his way to the gym. What is the probability that both pairs of socks are black?
If L (-2, -5) reflected across y = -4. What are the coordinates of L?
4x-3y=5;x+2y=4
Sean must chose a 6- digit PIN number for his online banking account.Each digit can be chosen from 0 to 9. How many different possible PIN numbers can sean chose.
The sum of two numbers is equal to 58 and the largest exceeds by at least 12. Find the two numbers
A person borrows rm 1000 from a bank at an interest rate of 10%. After some time, he pays the bank rm 1900 as full and final settlement of the loan. Estimate the duration of his loan.
What is the appropriate measurement for the weight of an African elephant?
∫ √9x + 1 dx
User One of the applications of the derivative of a function is its use in Physics, where a function that at every instant t associates the number s(t), this function s is called the clockwise function of the movement. By deriving the time function we obtain the velocity function at time t, denoted by v(t). A body has a time function that determines its position in meters at time t as S(t)=t.³√t+2.t . Present the speed of this body at time t = 8 s.
Buffalo Company makes and sells shampoo. Each unit requires $1.40 labor costs, material costs per unit are $0.90 and other variable costs are $0.30. It sells shampoo for $4.45 to retailers. Fixed costs are $15,000. It sold 25,000 units in the current month. What is the Break-Even point in units? What is the Break-Even point in dollars? What is the contribution margin of Buffalo Company?
(a) List the set of possible rational zeros of the polynomial function F(x) = 2x3 - 11x2 + 13x - 4. (b) Find all rational zeros of F(x). Only do part B
Give an example of a function defined in R that is continuous in all points, except in the set Z of integers.
How to convert 45 kg into grams
A loan is repaid with payments of $2226 made at the end of each month for 12 years. If interest on the loan is 5.2%, compounded semi-annually, what is the initial value of the loan? Enter to the nearest cent (two decimals). Do not use $ signs or commas.
7- A printing company found in its investigations that there were an average of 6 errors in 150-page prints. Based on this information, what is the probability of there being 48 errors in a 1200-page job?
Cuboid containers (open at the top) should be examined with regard to their volume. The figure below shows a network of such containers (x ∈ Df). Determine a function ƒ (assignment rule and definition area D) that describes the volume of these containers and calculate the volume of such a container if the content of the base area is 16 dm². Show that this function f has neither a local maximum nor a global maximum
2.3 X 0.8
Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 includes wide. How much ribbon does Mark need?
15=5(x+3)