Answer:
x = -2; y = 3
Step-by-step explanation:
5x + 4y = 2 (1)
3x + 3y = 3 (2)
Multiply (1) by 3 and (2) by 4
15x + 12y = 6 (3)
12x + 12y = 12 (4)
Subtract (4) from (3)
15x - 12x = 6 - 12
3x = -6
x = -6/3
x = -2
Substitute x = -2 into (1)
5x + 4y = 2
5(-2) + 4y = 2
-10 + 4y = 2
4y = 2 +10
4y = 12
y = 12/4
y = 3
The first error is when he multiplied equation (2) by 4
He didn't multiply the right hand side of the equation by 4
3x + 3y = 3 ×4
12x + 12y = 12
But he wrote
12x + 12y = 3
The the next error is subtracting the left hand side of the equation and adding the right hand side
15x + 12y = 6
12x + 12y = 3
He wrote
3x = 9
Instead of 3x = 3
1. I found the area of this hard math equation
2. I don’t know the formula to this do you?
3. So the equation says to find the length that miles ran
4. I don’t think we divide we should try to multiply first
5. Let me see how we can find the perimeter of this
6. My package came in a rectangle shape so I couldn’t tell what it was
7. I always get mixed up between a square and a rectangle
8.The apartments are in the shape of a square unit
9. After we find the length we have to find the width to solve this problem
Answer:
Step-by-step explanation:
By using mid point formula ,
(X,Y) =( X1+X2/2) , Y1 +Y2/2
(-2+2/2) , (-4-10/2)
or, (0/2), (-7)
Answer:
Step-by-step explanation:
4.30/40=$0.1075
Hope this helps :)
