Answer:
See step-by-step explanation
Step-by-step explanation:
Question 3: (4, -3)
Solving through elimination: Multiply the first equation by -3.
-3x+6y=-30
3x-5y = 27
Add. The x drops out.
y= -3
Substitute -3 in for y.
x-2y=10
x-2(-3)=10
x+6=10
x=4
Question 4: (2,5)
Solve through elimination: Multiply the second equation with 3.
3/2= 6/4
15/4x=7.5
x=2
3/2 (2) + y = 8
3+ y =8
y=5
Question 5: (6,4)
Use your graph to graph.
Slope of -1/3
Y-intercept of 6 (0,6)
X-intercept of 18 (18,0)
Slope of 3/2
Y-intercept of -5 (0,-5)
X-intercept of (
Question 6: (5, -7)
Solve by substitution:
Words of encouragement:
Good luck!
Answer:
the point
that will divide As into a 2:3 ratio using the formula
Segment AB is shown on the graph.
8
6
4
O
3-
3,2)
A
2
*= lato )(x2 – xy) + *;?
x= {f}(-3-2)+2
O x=(*) (2+3) - 3
x= {})(-3-2) +2
O x= ](2+3) – 3
o
1
-35
-3-2-14
3 4 5 6 7 X
B (2.-1)
-5
6
Y
least = 4
greatest= 8
4.4 rounds to 4
7.7 rounds to 8
<em>if the number is less then or equal to 4 it rounds down </em>
<em>if the number is equal to or greater than 5 it rounds up</em>
Answer:
......
Step-by-step explanation:
Answer:
the two number are 7 and 9
Step-by-step explanation:
2*x+y=25
3x-y = 20
add the two equations
2*x+y=25
3x-y = 20
---------------
5x = 45
divide by 5
5x/5 = 45/5
x = 9
lets find y
2x+y = 25
substitute x
2*9 +y =25
18+y =25
subtract 18 from both side
y = 25-18
y =7