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4 years ago

What is 15% of 450 show your work

2 answers:

6 0

15 becomes 0.15 after you divide 15 by 100
Next, do 0.15 times 450 which equals
67.5
rounded, this would become 68
So, the answer is 67.5

Anuta_ua [19.1K]4 years ago

5 0

Easy, change 15% into 0.15

n=0.15*450

n=67.5

Thus, your answer is, 67.5

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How many different strings of length 12 containing exactly five a's can be chosen over the following alphabets? (a) The alphabet

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Answer:

Part (A) The required ways are 792.

Part (B) The required ways are 101376.

Step-by-step explanation:

Consider the provided information.

Part (A) The alphabet {a, b}

The length of strings is 12 that containing exactly five a's.

The number of ways are: $\frac{12!}{5!7!}$

After filling "a" we have now 7 places.

For 7 places we have "a" and "b" alphabet but we already select a's so now the remaining place have to fill by "b" only.

Thus, the required ways are: $\frac{12!}{5!7!}\times 1=792$

Part (B) The alphabet {a, b, c}

We have selected five a's now we have now 7 places.

For 7 places we have "b" and "c".

Thus, there are 2 choices for each 7 place that is $2^7$

Therefore the total number of ways are: $792\times 2^7=101376$

Thus, the required ways are 101376.

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4 years ago

Simplify the expression so there is only one positive power for each base 2.7^-3 * 3.8^2 *2.7^4 * 3.8^3

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Step-by-step explanation:

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