MathMaster
Q & A
Blog
Tutorials
Calculators
Privacy policy
CONTACT US
Menu
Home
general
find by substitution method 2x y 3 3x y 4
Question
Find by substitution method 2x-y=3 3x-y=4
Like
120
likes
602
views
Answer to a math question Find by substitution method 2x-y=3 3x-y=4
Tiffany
4.5
103
Answers
$x=\frac{3+y}{2}$
$\begin{bmatrix}3\cdot \frac{3+y}{2}-y=4\end{bmatrix}$
$\begin{bmatrix}\frac{9+y}{2}=4\end{bmatrix}$
$y=-1$
$x=\frac{3-1}{2}$
$x=1$
$x=1,y=-1$
Frequently asked questions (FAQs)
What is 3/5 as a percent?
+
What is the maximum possible value of a continuous function f(x) on the interval [a, b], where a < b?
+
Math Question: Find the three positive integers a, b, and c that satisfy the equation an + bn = cn, where n is greater than 2.
+
New questions in Mathematics
Jose bought 3/4 of oil and his sister bought 6/8, which of the two bought more oil?
What is the amount of interest of 75,000 at 3.45% per year, at the end of 12 years and 6 months?
Suppose 56% of politicians are lawyers if a random sample of size 873 is selected, what is the probability that the proportion of politicians who are lawyers will be less than 55% round your answer to four decimal places
2x-4y=-6; -4y+4y=-8
A regional candy factory sells a guava roll at a price of $48, the monthly fixed costs amount to $125,000 and the variable cost for making a guava roll is $28. Determine: a) The equation of the total income from the production of guava rolls.
If f(x,y)=6xy^2+3y^3 find (∫3,-2) f(x,y)dx.
89, ÷ 10
3.24 ÷ 82
Use a pattern approach to explain why (-2)(-3)=6
Using the bank and exact method, calculate the interest on capital 10000 at 12% annual nominal interest rate for the period from 15.3. 2016 until 10/10/2016
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?
effectiveness of fiscal and monetary policy under closed and open economies
2x2
A diamond ring was reduced from $999.99 to $689.99. Find the percent reduction in the price. Round the answer to the nearest tenth of a percent, if necessary.
if y=1/w^2 yw=2-x; find dy/dx
a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?
A candy manufacturer must monitor deviations in the amount of sugar in their products They want their products to meet standards. They selected a random sample of 20 candies and found that the sandard deviation of that sample is 1.7. What is the probabilty of finding a sample variance as high or higher if the population variance is actually 3277 Assume the population distribution is normal.
question 1 Consider a sample space S, and two events A and B such that P(A ∩ B) = 0.2, P(A ∪ B) = 0.6, P(B ∪ ̄A) = 0.8 (a) [0.5 points] Calculate P (A). (b) [0.5 points] Calculate P (B)
-1/3x+15=18
g(x)=3(x+8). What is the value of g(12)
Download NOW
Apple store
Download NOW
Google play
Solve NOW
Try On Web
You might be interested in
Use the digits of 1,9,2,3 to come up with all the numbers 98 and 95
³√12 x ⁶√96
2x-y=5 x-y=4
Suppose that a device has been created that launches objects at ground level and that its operation is modeled by the function h(x) = -4ײ + 256x, with h being the height (in meters) and x being the distance (in meters) What is the maximum height that the object reaches?
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
Answer the following questions regarding the expression below. 0.1 (a) Write the number as a fraction.
In a grocery store, when you take out 3 peppers and 4 carrots, there are 26 peppers and 46 carrots left. How many peppers and carrots were there initially?
A recurring sequence is one where elements repeat after completing one standard. If the sequence AB8C14D96AB8C1... is recurring its twentieth term is equal to: (A) B. (B) 8. (C) A. (D) 6. (E) D.
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 95% of all males. (Accommodating 100% of males would require very wide seats that would be much too expensive.) Men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 1.2 in. Find P95. That is, find the hip breadth for men that separates the smallest 95% from the largest 5%.
The simple average of 15 , 30 , 40 , and 45 is
4+168×10³×d1+36×10³×d2=-12 -10+36×10³×d1+72×10³×d2=0
X~N(2.6,1.44). find the P(X<3.1)
Jasminder has made 55% of the recipes in a particular cookbook. If there are 9 recipes that he has never made, how many recipes does the cookbook contain?
For what values of m is point P (m, 1 - 2m) in the 2⁰ quadrant?
find missing measure for triangle area = 48 m square base = 10m heaighy = ? m
How to factorise 5y^2 -7y -52
2 - 6x = -16x + 28
calculate the product of 4 and 1/8
9n + 7(-8 + 4k) use k=2 and n=3
(3.1x10^3g^2)/(4.56x10^2g)