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1 year ago

15% of what number is equal to 9

Mathematics

2 answers:

just olya [345]1 year ago

8 0

The percentage of 15% of 9 is 60% (I think)

otez555 [7]1 year ago

5 0

Answer:

9 is 15% of 60.

Step-by-step explanation:

$\text{Formula}=\frac{\text{Number x 100}}{\text{Percent}} =\frac{9 \times100}{15} =60$

Following shows the steps on how to derive this formula and find out 15% of what number is 9.

<u>Step 1:</u> If 15% of a number is 9, then what is 100% of that number? Setup the equation.

$\frac{9}{15} = \frac{Y}{100}$ %

<u>Step 2:</u> Solve for Y

Using cross multiplication of two fractions, we get

$15Y=6\times100\\15Y=600$

Y = $\frac{600}{100} =60$

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Answer:

Step-by-step explanation:

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Rewrite eqn (1)

P(energy supplied) = P(S) + P(F) - P(F) P(S) ----(2)

substitute 0.85 for P(S) and 0,7 for P(F) in eqn (2) to find the probability of energy supplied by these energy sources

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= 1.55 - 0.595

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Therefore, the probability that there will be energy supplied by these two alternative sources in the next 10 years is 0.955

B) write the probability of only one source of energy available

P(only one source of energy available) = $P(\bar F S)$ ∪ $P( \bar S F)$ ---(3)

Rewrite the equation (3)

P(only one source of energy available) =

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Therefore,The probability that only one of the two alternative energy sources will be commercially viable in the next 10 years is 0.36

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2 years ago

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Step-by-step explanation:

1 out of 13 would be equal to the amount of cards that would be a jack.

But you also have to take into regards the coin flip 50%chance so you would just could what the number is divided by to get the right answer. Since out come could be tails or head instead of just being one for sure for example.

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2 years ago

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Answer:

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2 years ago

46.The function f graphed above is the function f(x) = log2(x) + 2 for x > 0. Find a formula for the inverse of this function

pantera1 [17]

Answer:

The inverse for log₂(x) + 2 is - log₂x + 2.

Step-by-step explanation:

Given that

f(x) = log₂(x) + 2

Now to find the inverse of any function we put we replace x by 1/x.

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As we know that

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So the inverse for log₂(x) + 2 is - log₂x + 2.

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3 years ago