Determine the best method to solve the system of equations. Then solve the system.
2 answers:
Answer:
x=1 y = -1/2
(1,-1/2)
Step-by-step explanation:
7x-2y=8
5x+2y=4
I would use elimination since we have 2y in one equation and -2y in the other
7x-2y=8
5x+2y=4
--------------------
12x = 12
Divide each side by 12
12x/12 = 12/12
x =1
The substitute back into equation 2
5(1) +2y = 4
5 +2y = 4
Subtract 5
5-5+2y = 4-5
2y = -1
Divide by 2
2y/2 = -1/2
y = -1/2
Answer:
The best method is the elimination method. The solution is (1, -1/2).
Step-by-step explanation:
7x - 2y = 8
5x + 2y = 4
12x = 12
x = 1
7(1) - 2y = 8
7 - 2y = 8
-2y = 1
y = -1/2
Make sure to write the answer in the form of an ordered pair.
Note: Alternative methods are graphing and the substitution method.
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Answer:
x=5
Step-by-step explanation:
That is your answer .
First you do 4x-3+3=2x+7+3
then,4x=2x+10,then
subtract 2x from both side
4x-2x=2x+10-2x
simplify
2x=10
divide both sides by 2 2x/2=10/2
simplfy and you get x=5
Hope this helps :)
Answer:
1/10
Step-by-step explanation:
1/2 x 1/5= 1/10
Answer:
h=1.27 in.
Step-by-step explanation:
V=πr^2h
Plugin the values and solve
36=π(3)^2h
36/9π=h
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