MATHEMATICS MIDDLE SCHOOL

4x - 3y = 15
2x + 2y = 4

what is the solution of the system of equations?

Answers

Answer 1
Answer:

Answer:

System of Linear Equations entered :

  [1]    4x - 3y = 15

  [2]    2x + 2y = 4

Step-by-step explanation:

// Solve equation [2] for the variable  y  

 

 [2]    2y = -2x + 4

 [2]    y = -x + 2

// Plug this in for variable  y  in equation [1]

  [1]    4x - 3•(-x +2) = 15

  [1]    7x = 21

// Solve equation [1] for the variable  x  

  [1]    7x = 21  

  [1]    x = 3  

// By now we know this much :

   x = 3

   y = -x+2

// Use the  x  value to solve for  y  

   y = -(3)+2 = -1  

Solution :

{x,y} = {3,-1}  
Answer 2
Answer:

Answer:

 {3,-1}  

Step-by-step explanation:

Related Questions

3x-5y= 17; Solve for y​
Please help with hold page
What is the y-intercept of the function f(x) = –negative StartFraction 2 Over 9 EndFraction.x + ? –negative StartFraction 2 Over 9 EndFraction. –negative StartFraction 1 Over 3 EndFraction. StartFraction 1 Over 3 EndFraction. StartFraction 2 Over 9 EndFraction.
Identify the outlier in the following data set. 65, 72, 81, 74, 28, 74
The diameter of a circular rug is 5.6 feet. What is the radius?

Use the figure to identify each pair of angles as complementary angles, supplementary angles, vertical angles, or none of these.A: angles 1 and 5
B: angles 3 and 5
C: angles 3 and 4

Answers

Complimentary means parts of a 90* angle. So 1 and 5. Then 3 and 5 are vertical, and 3&4 supplementary because they make up a 180*. So comp=90, supp=180, and vertical are opposite sides of an X shape

Point A on a number line is 12 units to the left of 0. Point B is 9 units to the right of zero. What is the distance between Point A and Point B?A) -21 units
B) -3 units
C) 3 units
D) 21 units

Answers

I’m pretty sure it’s 21 units

To make purple paint, Mya mixed 2/5 cup of red paint with 5/8 cup of blue paint. She wants to make a larger batch of the purple paint. How much red paint is needed to mix one cup of blue paint?

Answers

Answer: so i need 10/15 cups of red paint

Step-by-step explanation: 2/5 x 8/5 = 16/25

2/5 -----> 1

10/25 -----> 8/5

1 ÷ 5/8 = 8/5

How many cups is equal to a quart

Answers

4 united states customary cups
Only 4 cups.........

Please Solve:Adding and Subtracting PolymonialsAdd:  (–6 – n + 2n2) + (8 – 3n – 10n2)   
A.–2 – 4n – 8n2  
B.2 – 2n – 8n2  
C.2 – 4n – 8n2  
D.–2 – 2n – 8n2

Add:  (8x + 2y – 3z – 4) + (–4x – 5y + 4z + 6)  
A.–4x + 3y – z + 2  
B.4x – 3y – z + 2  
C.–4x + 3y –z – 2  
D.4x – 3y + z + 2

Subtract and simplify: (2p^2q – 3pq^2 + q^3) – (p^2q + q^3)  
A.p^2q – 3pq^2  
B.2p^2q – 3pq^2  
C.p^2q – 3pq^2+2q^3  
D.p^2q – 2pq^2

Subtract and simplify: (–y^2 – 3y – 5) – (–3y^2 – 7y + 4)  
A.2y^2 – 10y + 4  
B.2y^2 + 4y – 9  
C.–2y^2 – 10y – 1  
D.2y^2 – 7y – 9

Subtract and simplify: (10x^4 – 2x + 7) – (6x^4 + 2x^3 – 4x^2 – 1) 
A.4x^4 – 2x^3 + 4x^2 – 2x + 6  
B.4x^4 + 2x^3 – 4x^2 – 2x + 8  
C.4x^4 – 2x^3 + 4x^2 – 2x + 8  
D.16x^4 + 2x^3 + 4x^2 – 2x + 8

Answers

Add:\n \n (-6-n + 2n^2) + (8 - 3n - 10n^2) =\n \n= -6-n + 2n^2 + 8 - 3n - 10n^2 =\n \n=2 - 4n -8n^2 \n \n Answer : \ C. \ \ \2 - 4n - 8n2


Add: \n \n (8x + 2y - 3z -4) + (-4x - 5y + 4z + 6) = \n \n =8x + 2y - 3z -4 -4x - 5y + 4z + 6=\n \n=4 x - 3 y + z + 2 \n \n Answer : \ D. \ \ \ 4x - 3y + z + 2


Subtract \ and \ simplify: \n\n (2p^2q - 3pq^2 + q^3) -(p^2q + q^3)=\n \n= 2p^2q - 3pq^2 + q^3 - p^2q -q^3 = \n \n= p^2q - 3pq^2 \n \n Answer : \ A. \ \ \ \ p^2q - 3pq^2


Subtract \ and \ simplify: \n\n (-y^2 - 3y-5) - (-3y^2 - 7y + 4)= \n \n= -y^2 - 3y-5+3y^2 +7y- 4 =\n \n=2y^2+4y-9 \n \nAnswer : \ B.\ \ \ \ 2y^2 + 4y - 9


Subtract \ and \ simplify: \n\n (10x^4 -2x + 7)-(6x^4 + 2x^3 -4x^2 - 1) = \n \n = 10x^4 -2x + 7 - 6x^4 - 2x^3 +4x^2 + 1=\n \n=4x^4 -2x^3 +4x^2-2x + 8 \n \nAnswer : \ C. \ \ \ \4x^4 -2x^3 + 4x^2- 2x + 8
 
1)\n(-6-n + 2n^2) + (8-3n-10n^2) =2-4n-8n^2\ \ \ \Rightarrow\ \ \ Ans.\ C\n\n2)\n(8x+2y-3z-4)+(-4x-5y+4z+6)=4x-3y+z+2\ \Rightarrow\ Ans.D\n\n3)\n(2p^2q-3pq^2+q^3)-(p^2q + q^3) =p^2q-3pq^2\ \ \ \Rightarrow\ \ \ Ans.\ A\n\n4)\n (-y^2-3y-5)-(-3y^2-7y + 4) =-y^2-3y-5+3y^2+7y - 4=\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ =2y^2+4y-9\ \ \ \Rightarrow\ \ \ Ans.\ B\n

5)\n(10x^4-2x + 7)-(6x^4 + 2x^3-4x^2-1) =\n=10x^4-2x + 7-6x^4 - 2x^3+4x^2+1=\n=4x^4-2x^3+4x^2-2x+8\ \ \ \Rightarrow\ \ \ Ans.\ C

Last year, there were 380 students at woodland middle school.This year, the student population will increase by 5%. What will be the school's increased student population

Answers

380 is 100%
this year will increase 5%
100% + 5 % = 105% = 1.05
1.05 * 380 = 399
Other Questions
Last week Missy read for a total of 240 minutes during this time she read 112 pages at this rate how many pages did she read in an hour
Mrs. Williams is going to plant flowers in a flowerbed like the one shown belowMrs. Williams has a bag containing 0.25 cubic feet of soil. She wants to know if this bag of soil will be enough to fill her flowerbed. Which statement explains why the bag of soil will or will not be enough to fill her flowerbed?
Prime factor of 293 in expanded form
What property of an even function do you see in this graph?