Answer:find the solution to the system of equations below.start by adding the equation
{-2x+2y=-8
{2x+y=5
Step-by-step explanation:The given system of equation are:
1---- y= x -4
2----- y=4 x+2
Equation (1) - Equation (2)
→0= x -4 - (4 x+2)
→0= -3 x -6-----[Adding and subtracting like terms]
Adding 3 x on both sides
→3 x= -6
Dividing by 3 on both sides
→x = -2
→Substituting the value of x in equation 1, we get
y= -2 -4
y =-6
→Solution set =(x,y)=(-2, -6)
Don't used the graph to find the solution.
Answer:
54 feet
Step-by-step explanation:
We can use proportions
1 inch 27 inches
--------- = ------------
2 feet x feet
Using cross products
1x = 54
The building is 54 feet
Answer:
£223 was the original price
Step-by-step explanation:
35% of original price = £78
1% of original price = £78/35 = £2.23
100% of original price = 2.23 x 100 = £223
Answer:
they are supplementary angles since they add up to 180
- 5 = -7 .
____________________________________________This would be one way to write the expresion/equation; in which "x" represents the unknown number.
Now, to solve for "x" ;
____________________________________________Given:
____________________________________________ - 5 = -7 ;
Add "5" to EACH SIDE of the equation:
_____________________________________________ - 5 + 5 = -7 + 5 ;
to get:
= -2 ;
x = (-2 * 3) ;
_________________________________x = - 6 .
_________________________________
