$MathMaster logo$

MathMaster

Home
general
x y 15 2x 3y 29

Question

X - y = 15 2x + 3y = 29

149

likes

745 views

Answer to a math question X - y = 15 2x + 3y = 29

$Expert avatar$

4.5

103 Answers

$x=15+y$

$\begin{bmatrix}2(15+y)+3y=29\end{bmatrix}$

$\begin{bmatrix}30+5y=29\end{bmatrix}$

$y=-\frac{1}{5}$

$x=15-\frac{1}{5}$

$x=\frac{74}{5}$

$x=\frac{74}{5},y=-\frac{1}{5}$

Frequently asked questions (FAQs)

Math question: Find the 4th highest order derivative of f(x) = x^5 - 3x^3 + 2x + 1.

+

Math Question: "Factorize the expression 2x² - 6x + 4 using the distributive property.

+

What is the variance of a data set: {10, 12, 14, 16, 18} ?

+

New questions in Mathematics

Find 2 numbers that the sum of 1/3 of the first plus 1/5 of the second will be equal to 13 and that if you multiply the first by 5 and the second by 7 you get 247 as the sum of the two products with replacement solution

3(4×-1)-2(×+3)=7(×-1)+2

5 people can complete a task in 72 hours. How many people are needed to complete the task in 60 hours.

Solve the math problem 400 students are asked if they live in an apartment and have a pet: Apartment: 120 Both: 30 Pet: 90 The probability that a randomly selected student not living in an apartment has a pet is

What is the r.p.m. required to drill a 13/16" hole in mild steel if the cutting speed is 100 feet per minute?

Find the equation of the line perpendicular to −5𝑥−3𝑦+5=0 passing through the point (0,−2)

The durability of a tire of a certain brand is a Normal random variable with an average of 64,000 km and a standard deviation of 9,000 km. Assuming independence between tires, what is the probability that the 4 tires on a car will last more than 58,000 km?

TEST 123123+1236ttttt

In a company dedicated to packaging beer in 750 mL containers, a normal distribution is handled in its packaging process, which registers an average of 745 mL and a standard deviation of 8 mL. Determine: a) The probability that a randomly selected container exceeds 765 mL of beer b) The probability that the beer content of a randomly selected container is between 735 and 755 mL.

The population of Pittsburgh, Pennsylvania, fell from 520,117 in 1970 to 305,704 in 2010. Write an exponential function P(t) modeling the population t years after 1970. Round the growth factor to the nearest tem thousandth.

Quadratic equation 2X = 15/X + 7

On+January+10+2023+the+CONSTRUCTORA+DEL+ORIENTE+SAC+company+acquires+land+to+develop+a+real estate+project%2C+which+prev%C3% A9+enable+50+lots+for+commercial+use+valued+in+S%2F+50%2C000.00+each+one%2C+the+company+has+as+a+business+model+generate+ cash+flow+through%C3%A9s+of+the+rental%2C+so+47%2C+of+the+50+enabled+lots+are+planned to lease+47%2C+and+ the+rest+will be%C3%A1n+used+by+the+company+for+management%C3%B3n+and+land+control

17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.

When taking a test with m closed answers, a student knows the correct answer with probability p, otherwise he chooses one of the possible answers at random. What is the probability that the student knows the correct answer given that he answered the question correctly.

a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?

Convert (324)𝑓𝑖𝑣𝑒 into base-ten