Using elimination, you can do
4x+3y-(4x-2y)=3-(18)
5y=-15
y=-3
Substitute it back into original equation:
4x+6=18
4x=12
x=3
<h2>
So, the answer is <u><em>
x=3, y=-3</em></u></h2>
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Answer:
2.68
Step-by-step explanation:
2/4=1.34/x
solve proportion
2x=5.36
divide both sides by 2
5.36/2
=2.68
Divide each set to see if the answers are identical:
A: 3/2 = 1.5
6/3 = 3
Answers are not the same so this is not proportional.
B: 20/4 = 5
24 /6 = 4
Answers are not the same so this is not proportional.
C: 27/9 = 3
81/27 = 3
Answers are the same so this is proportional.
D: 8/2 = 4
16/8 = 2
Answers are not the same so this is not proportional.
The answer is C.
Answer:
-1/6
Step-by-step explanation:
-1/2 + (3/4 * 4/9)
Parentheses first
Rewriting
-1/2 +(3/9 *4/4)
-1/2 +(1/3)
Getting a common denominator of 6
-1/2 *3/3 + 1/3 *2/2
-3/6 +2/6
-1/6
