In order to solve using elimination, we need to be able to get rid of one variable, so that we can solve for the other. We need to subtract these two equations given from one another, or multiply the bottom equation by a negative and add them together.
(-5x + 6y = 8) - (-5x + 4y = 2)
(-5x + 6y = 8) + (5x - 4y = -2)
0x + 2y = 6
2y = 6
y = 3
Now that we know the value of one variable, we can take that value and plug it back into one of the original equations and solve for the value of the other variable.
-5x + 6y = 8
-5x + 6(3) = 8
-5x + 18 = 8
-5x = -10
x = 2
The solution to this system of equations is (2, 3).
Hope this helps!! :)
So the equation is 32x+0.15y = $250
You know that you’re going to a 5-day trip so you can change x to 5
32(5)+0.15y = $250
You multiply 32 by 5 = 160
$160+0.15y = $250
And to simplify the equation(to make it easier) you subtract 160 on both sides
0.15y = $90
Now you’re trying to find y, so divide 90 by 0.15 to find the maximum of miles you can drive.
y = 600 mi
The maximum amount of miles you can drive is 600
Graph:
I can’t show any pictures sorry
But this is how you do it
Make a number line
Graph 600 with a closed circle, like this: ●
Then make an line going to the left(because you can’t go any more than 600)
Hope this helps! :^)
-10x+4.
5x-7x is -2.
-2x-8x is -10x.
you cannot simplify the 4
alternatively, you could write -10x+4 as
-2(5x-2)
X= amount of orange juice in the beginning
3/4=(3/8)X
.75=.375X
.75/.375=X
X=2
there were 2 liters in the beginning
Answer:
![28.96 \times 9.41 = 272.5136](https://tex.z-dn.net/?f=28.96%20%5Ctimes%209.41%20%3D%20272.5136)
Step-by-step explanation:
Solving For ![28.96 \times 9.41](https://tex.z-dn.net/?f=28.96%20%5Ctimes%209.41)
Step 1: Multiplying 28.96 with 1 we get 2896
Step 2: add 0 and the multiply 28.96 with 4 we get 115840
Step 3: add 2 0's and the multiply 28.96 with 9 we get 2606400
Now adding all the three answer we get 2725136
Now decimal point of number and multiplier both are after 2 digit from units place so we will add decimal point 4 digit from unit place in final answer
hence we get 272.5136
Solving For ![63.7 \times 2.5](https://tex.z-dn.net/?f=63.7%20%5Ctimes%202.5)
Step 1: Multiplying 63.7 with 5 we get 3185
Step 2: add 0 and the multiply 63.7 with 2 we get 12740
Now adding all the three answer we get 15925
Now decimal point of number and multiplier both are after 1 digit from units place so we will add decimal point 2 digit from unit place in final answer
hence we get 159.25