$MathMaster logo$

MathMaster

Home
general
3x 5y 11 2x 3y 1

Question

3x+5y=11 2x-3y=1

163

likes

815 views

Answer to a math question 3x+5y=11 2x-3y=1

$Expert avatar$

4.5

97 Answers

$x=\frac{11-5y}{3}$

$\begin{bmatrix}2\cdot \frac{11-5y}{3}-3y=1\end{bmatrix}$

$\begin{bmatrix}\frac{22-19y}{3}=1\end{bmatrix}$

$y=1$

$x=\frac{11-5\cdot 1}{3}$

$x=2$

$x=2,y=1$

Frequently asked questions (FAQs)

How many ways can you arrange the letters "MATH" if all letters must be used?

+

What is the number of different ways to arrange a group of 6 people from a total of 10 people?

+

Math question: Find the absolute extrema of the function f(x) = x^3 - 3x^2 + 2x on the interval [-2, 2].

+

New questions in Mathematics

If we have the sequence: 3, 6, 12, 24 Please determine the 14th term.

For a temperature range between 177 degrees Celsius to 213 degrees Celsius, what is the temperature range in degrees Fahrenheit.

Given that y = ×(2x + 1)*, show that dy = (2x + 1)" (Ax + B) dx where n, A and B are constants to be found.

An electrical company manufactures batteries that have a duration that is distributed approximately normally, with a mean of 700 hours and a standard deviation of 40 hours. Find the probability that a randomly selected battery has an average life of less than 810 hours.

Director of reservations believes that 9% of the ticketed passengers are no-shows. If the directors right what is the probability that the proportion of no-shows in a sample of 789 ticketed passengers with differ from the population proportion buy more than 3% round your answer to four decimal places.

Suppose 50% of the doctors and hospital are surgeons if a sample of 576 doctors is selected what is the probability that the sample proportion of surgeons will be greater than 55% round your answer to four decimal places

Find the sum of the first 41 terms of the progression that begins: 32, 24, 16, …

Find the derivatives for y=X+1/X-1

Suppose the Golf ball market is perfectly competitive and the functions are known: Q = 120 – 2Px – 2Py 0.2I Q = 2Px 40 Where I = Consumers' income ($200) and Py = Price of Good Y (40) Calculate the equilibrium elasticity: a) 1.6 b) -6 c) 6 d) 0.6

Two business partners have a bank balance of $17,942.00. After the first year their interest brings their balance to $18,928.91. What rate of interest is earned?

The probability of growing a seedling from a seed is 0.62. How many seeds do I need to plant so that the probability of growing at least one seedling is greater than or equal to 0.87?

We plan to test whether the mean mRNA expression level differs between two strains of yeast, for each of 8,000 genes. We will measure the expression levels of each gene, in n samples of strain 1 and m samples of strain 2. We plan to compute a P-value for each gene, using an unpaired two-sample t-test for each gene (the particular type of test does not matter). a) What are the null hypotheses in these tests (in words)? [2] b) If, in fact, the two strains are identical, how many of these tests do we expect to produce a P-value exceeding 1/4? [2]

You buy a $475,000 house and put 15% down. If you take a 20 year amortization and the rate is 2.34%, what would the monthly payment be?

Let G be the center of gravity of triangle ABC. We draw through A a parallel to BC on which we take a point D so that DG⊥BG. If the area of the quadrilateral AGBD is equal to s, show that AC·BD≥2·s.

Write the inequality in the form of a<x<b. |x| < c^2

22. Let [AB] be a chord in a circle C, and k a circle which is internally tangent to the circle C at a point P and to the chord [AB] at a point Q. Show that the line P Q passes through the midpoint of the arc AB opposite to the arc APB.

To apply a diagnostic test, in how many ways can 14 students be chosen out of 25? if the order does not matter