Answer:
3/20 or 0.15 or 15%
Step-by-step explanation:
Since 3 red marbles were drawn out of 20 outcomes, the probability the next marble will be red is 3/20. If you convert it to a decimal it will be 0.15, and if you convert it to a percent it will be 15%.
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Equation Given :
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16x² = 121
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Take away 121 from both sides:
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16x² - 121 = 0
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Make each term a perfect square
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(4x)² - (11)² = 0
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Apply algebraic rule : a² - b² = (a + b)(a - b)
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(4x + 11) (4x - 11) = 0
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Apply zero product property :
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4x + 11 = 0 or 4x - 11 = 0
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Solve for x :
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4x = - 11 or 4x = 11
x = -11/4 or x =11/4
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Answer: x = -11/4 or x = 11/4
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-2(h-3)> -10
-2h+6> -10
-6 -6
———————
-2h< -16
—————-
-2 -2
h< 8
Answer:
Step-by-step explanation:
You're trying to solve
for a, right?
When you have a fraction set equal to a fraction, you can cross multiply to get rid of the fractions. That would mean that
ap = mn. Solving for a means that you divide both sides by p:
Answer:
3
Step-by-step explanation:
Since + × - = -
The - sign will change
+7 - 4 = 3
