<u>Answer:
</u>
The ordered pair value of (x, y) is (6,-11)
<u>Solution:
</u>
Given Equations are
Let 8x + 15y = -117 be Equation 1 and 4x + 9y=-75 be Equation 2.
Solving Equations 1 and 2 to get the value of x and y.
Multiply Equation 2 with 4.
16x + 36y = -300
On dividing the above expression by 2, we get
8x + 18y = -150 (Change the sign to get the value of y).
-8x - 18y = 150 --- eqn 3
Now solving eqn 1 and eqn 3
8x + 15y = -117
-8x - 18y = 150
By cancelling 8x and -8x in eqn 1 and eqn 3
-3y = 33
y = -11
Substitute the value y in Equation 2.
4x + 9 (-11) = -75
4x – 99 = - 75
4x= -75 +99
4x = 24
x=6
Hence the value of x and y is (6,-11).
It seem like there are information missing on the question posted. Let me answer this question with all I know. So here is what I believe the answer is, <span>Instantiate an array, load it with values, total up all of the values in the array. finally, find the average of all of the values.</span>
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Answer: 6x + 8y =1,245
Step-by-step explanation:
Hi, to answer this question we have to write an equation for each person:
Jack = The total cost (650) must be equal to the product of the number of shirts he bought (2) and the price per shirt (x); plus the product of the number of pair of jeans he bought (5) and the price per jean (y).
2 x+ 5 y=650
Dylan = The total cost (595) must be equal to the product of the number of shirts he bought (4) and the price per shirt (x); plus the product of the number of pair of jeans he bought (3) and the price per jean (y).
4x+3y = 595
Vertical addition:
2 x+ 5 y=650
+
4x+3y = 595
_________
6x + 8y =1,245
Answer:
The answer is:
5 ft is <u>13.33</u>% of 37 1/2 ft; 37 1/2 ft is <u>750</u>% of 5 ft.
Step-by-step explanation:
Given:
5 ft is ____ % of 37 1 2 ft.
Now, to find the __ :
Let __ be 
So, 5 ft is 
of 37 1/2
⇒ 
⇒ 
Multiplying both sides by 200 we get:
⇒ 
Dividing both sides by 75 we get:
⇒ 
⇒ 
Now, 37 1/2 ft is 
% of 5 ft.
Multiplying both sides by 100 we get:
Dividing both sides by 5 we get:
Therefore, the answer is 5 ft is <u>13.33</u>% of 37 1/2 ft; 37 1/2 ft is <u>750</u>% of 5 ft.
X - 2y = 3
<span>4x^2 - 5xy + 6y = 3
lets solve for x the first and substitute in the second:
x = 3 + 2y
4(</span>3 + 2y)^2 - 5(3 + 2y)y + 6y = 3
4(9 + 12y + 4y^2) - 15y - 10y^2 = 3
36 + 48y +16y^2<span> - 15y - </span><span>10y^2 = 3
6y^2 + 33y + 33 = 0
we can solve using the general quadratic formula:
y = (-33 +- </span>√(33^2 - 4*6*33)<span>)/12
</span>y = (-33 +- √(297)<span>)/12
</span>so there are 2 solutions for y:
y1 = (-33 + √(297)<span>)/12
</span>y2 = (-33 - √(297)<span>)/12
</span>pick one and then substitute the y value in the first equation to find x
