Here’s the answer. You just plug the y=-2+6 into -4x-6y=7.
2(x + 7) = 36 |use distributive property
(2⋅x)+(2⋅7)=36
2·x+2·7=36
2x + 14 = 36
2(x + 7) = 36 |:2
x + 7 = 18
Answer (bold expressions).
30% , as:
Let the percentage of people preferring wooden skateboards be 'x'.
Therefore, x/100*643=209
x/100=209/643
x=209*100/643
x=20900/643
x=32.50.......
By rounding it off to 30, we get 30% as answer.
<h3>
Answer: B. 2/3(x+6)</h3>
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Explanation:
If you distribute the expression in choice A, then you'd get
(1/3)(2x+6) = (1/3)*2x + (1/3)*6 = (2/3)x+2
which is not the original expression. So we can rule out choice A.
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A similar story happens with choice C
(2/3)(x+12) = (2/3)x+(2/3)*12 = (2/3)x+8
and also with choice D
(2/3)(x+4) = (2/3)x+(2/3)*4 = (2/3)x + 8/3
allowing us to rule out choices C and D
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Choice B works
(2/3)(x+6) = (2/3)x+(2/3)*6 = (2/3)x+4