Answer:
I wonder what its like to be my freinds
Step-by-step explanation:
Answer:
she put 9 cars in each pile since 9times 5 equals 45.
Step-by-step explanation:
We got the value of
by solving the given equations
and
by reduction method.
<h2>
What is reduction method?</h2>
The reduction or elimination approach includes using arithmetic operations between equations to produce equivalent equations with fewer unknowns that are simpler to analyze and evaluate.
Given equations are
.........(1)
...........(2)
We need to find the value of ![e=x+y](https://tex.z-dn.net/?f=e%3Dx%2By)
Simplifying the given equation (2) and we get
................(3)
Now, substitute the equation (3) in equation (1) and we get
![3x+2(26-5x)=26\\\Rightarrow 3x+52-10x=26\\\Rightarrow -7x+52=26\\\Rightarrow -7x=26-52\\\Rightarrow -7x=-26\\\Rightarrow x=\frac{26}{7}](https://tex.z-dn.net/?f=3x%2B2%2826-5x%29%3D26%5C%5C%5CRightarrow%203x%2B52-10x%3D26%5C%5C%5CRightarrow%20-7x%2B52%3D26%5C%5C%5CRightarrow%20-7x%3D26-52%5C%5C%5CRightarrow%20-7x%3D-26%5C%5C%5CRightarrow%20x%3D%5Cfrac%7B26%7D%7B7%7D)
Substitute the value of x in equation (3), we get
![y=26-5\frac{26}{7} \\\Rightarrow y=26-\frac{110}{7}\\\Rightarrow y=\frac{162-110}{7}\\\Rightarrow y=\frac{52}{7}\\](https://tex.z-dn.net/?f=y%3D26-5%5Cfrac%7B26%7D%7B7%7D%20%5C%5C%5CRightarrow%20y%3D26-%5Cfrac%7B110%7D%7B7%7D%5C%5C%5CRightarrow%20y%3D%5Cfrac%7B162-110%7D%7B7%7D%5C%5C%5CRightarrow%20y%3D%5Cfrac%7B52%7D%7B7%7D%5C%5C)
Now adding the values of x and y, we get
![\therefore e=\frac{26}{7}+\frac{52}{7}\\\Rightarrow e=-{[\frac{26+52}{7}]\\\Rightarrow e={[\frac{78}{7}]](https://tex.z-dn.net/?f=%5Ctherefore%20e%3D%5Cfrac%7B26%7D%7B7%7D%2B%5Cfrac%7B52%7D%7B7%7D%5C%5C%5CRightarrow%20e%3D-%7B%5B%5Cfrac%7B26%2B52%7D%7B7%7D%5D%5C%5C%5CRightarrow%20e%3D%7B%5B%5Cfrac%7B78%7D%7B7%7D%5D)
Therefore, the value of
.
To learn more about reduction method from the below link:
brainly.com/question/13107448
#SPJ4
So an equation for linear equations is y=(m)x+b
you will have to divide 12000 by 49. 12,000/49=244.8 rounded up is 245. that is the m value so now the equation looks like this
y=245x+b
we now need to find the b value. there are two ways you can do this choice a) plug in the x value and y value in the ordered pair 49(x), 12,000(y) or choice b) you and do another equation. I will do choice a
sooo the x value will go after 245
y=245*49+b
then the y value
12000=245*49+b
now solve like a normal equation
here is my answer to this equation:
b=-5
so here is the full answer
y=245x+-5
First You Solve In The Parenthesis.
(5×2) = 10
Then U Add The Rest .
10 + 4 = 14
14 Is Your Answer ! :)