Answer:
x= 20,y= −36
Step-by-step explanation:
3x+2y=−12
2x+y=4
Subtract 2x
from both sides of the equation.
y=4−2x
3x+2y=−12
Replace all occurrences of y
with 4−2x
in each equation.
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−x+8=−12
y=4−2x
Solve for x
in −x+8=−12
.
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x=20
y=4−2x
Replace all occurrences of x
with 20
in each equation.
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y=−36
x=20
The solution to the system is the complete set of ordered pairs that are valid solutions.
(20,−36)
The result can be shown in multiple forms.
Point Form:
(20,−36)
Equation Form:
x=20,y=−36
Discounted at 15% off....means the kid actually paid 85%
0.85(18) = 15.30
and then there is the 6% sales tax...
15.30 * 1.06 = 16.218 rounds to $ 16.22 <== what she pays
Answer:
bottom rung 24cm. wide and the top rung
18cm. wide. If the length of the rungs decreases uniformly from bottom to top, how long
should each of the seven intermediate rungs be?
3,Find the first term of the sequence 10, 5, 2.5, 1.25, . . . which is less than 0.0001.
3,In an arithmetic sequence, if the p
th term is q and the q
th term is p, find the (p + q)
th term.
Answer:
The point on the plane (4, 2)
That is x = 4 and y = 2
Step-by-step explanation:
Look for the point where the two lines given by the system of linear equations intersect. That point is (4, 2)
x = 4 and y = 2
I belive you just multiply each point by1/2. So -10/2=-5 and -6/2=-3
So point b will be(-5,-3)
