$MathMaster logo$

MathMaster

Home
general
4x 8y 5 2x 4y 10

Question

4x + 8y = 5 2x + 4y = 10

185

likes

927 views

Answer to a math question 4x + 8y = 5 2x + 4y = 10

$Expert avatar$

4.5

100 Answers

$x=\frac{5-8y}{4}$

$\begin{bmatrix}2\cdot \frac{5-8y}{4}+4y=10\end{bmatrix}$

$\begin{bmatrix}\frac{5}{2}=10\end{bmatrix}$

$\mathrm{No\:Solution}$

Frequently asked questions (FAQs)

What is the dot product of vectors A=[3, -2, 5] and B=[2, 4, 1]?

+

What is the formula for calculating the area of a rectangle?

+

Calculate the product of two numbers if one is 6 more than the other, and their sum is 54.

+

New questions in Mathematics

A sample is chosen from a population with y = 46, and a treatment is then administered to the sample. After treatment, the sample mean is M = 47 with a sample variance of s2 = 16. Based on this information, what is the value of Cohen's d?

For a temperature range between -3 degrees Celsius to 5 degrees Celsius, what is the temperature range in degrees Farenheight

(5u + 6)-(3u+2)=

Reparameterize the curve r(t)= cos(t)i without (t)j (t)k by the arc length.

A test has 5 multiple choice questions. Each question has 4 alternatives, only one of which is correct. A student who did not study for the test randomly chooses one alternative for each question.(a) What is the probability of him getting a zero on the test?(b) What is the probability of him getting a three or more? The maximum mark for the test is 5, with each question worth one point.

Determine the reduced equation of the straight line that is perpendicular to the straight line r: y=4x-10 and passes through the origin of the Cartesian plane

calculate the area in square units of A rectangle with length 6cm and breadth 5cm

User Before the election, a poll of 60 voters found the proportion who support the Green candidate to be 25%. Calculate the 90% confidence interval for the population parameter. (Give your answers as a PERCENTAGE rounded to TWO DECIMAL PLACES: exclude any trailing zeros and DO NOT INSERT THE % SIGN) Give the lower limit of the 90% confidence interval Give the upper limit of the 90% confidence interval

The following table shows the frequency of care for some animal species in a center specializing in veterinary dentistry. Species % Dog 52.8 Cat 19.2 Chinchilla 14.4 Marmoset 6.2 Consider that the center only serves 10 animals per week. For a given week, what is the probability that at least two are not dogs? ATTENTION: Provide the answer to exactly FOUR decimal places

Quadratic equation 2X = 15/X + 7

If the regression equation is given by 4x –y + 5 = 0, then the slope of regression line of y on x is

Subjects are randomly assigned to one of three specialties for a 3-month rotation, and at the end of that rotation, they are given a test that measures moral development. The scores are listed below, where a high score represents high moral development and a low score represents low moral development. Orthopedics Pediatrics Oncology 77 63 54 84 93 97 66 97 76 44 76 65 59 45 91 40 88 68 28 74 54 M = 56.86 M = 76.57 M = 72.14 What is Nt?

A cell phone company offers two calling plans. Plan A: $20 per month plus 5 cents for each minute, or Plan B: $30 per month plus 3 cents for each minute. [2] Write an equation to describe the monthly cost (a) C (in $) in terms of the time m (in minutes) of phone calls when Plan A is applied.

Find the set of points formed by the expression 𝜋<|𝑧−4+2𝑖|<3𝜋.

1. The cost to transport 250 packages of cement 120 kilometers is $600. What will be the cost to transport 500 packages 300 kilometers?

Square root of 169 with steps