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Daniel [21]
3 years ago
7

Anita works at a local news station and needs to decide which news story to report first. Of the news stories, 3 are local, 4 ar

e international, and 5 national. The stories are equally important so anita randomly orders the stories. What is the probability that the first story is a national story. Give your answer as a fraction
Mathematics
1 answer:
Alexxx [7]3 years ago
7 0
Answer: 5/12

In order to solve this, you would add up all of the news stories she has and then put the number of national stories on top of the total news stories to give you 5/12. (There’s a total of 12 news stories and 5 of them are national.)
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ludmilkaskok [199]

Answer:

i8hjkdfghjkycxgigcftfiuyg

Step-by-step explanation:

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7 0
2 years ago
Five years ago, Victor was twice as old as his daughter Anika. In 10 years, the sum of their ages will equal 90. Find their ages
frozen [14]

Answer: 45 and 25

Step-by-step explanation:

Given

Five years ago victor was twice as old as his daughter

Suppose the current age of victor and his daughter are x and y

For five years ago

\Rightarrow (y-5)=2(x-5)\\\Rightarrow y-5=2x-10\\\Rightarrow y=2x-5\\\Rightarrow 2x-y=5\quad \ldots(i)

In 10 years sum of their ages is 90

\Rightarrow (y+10)+(x+10)=90\\\Rightarrow x+y=70\quad \ldots(ii)

On solving (i) and (ii) we get

\Rightarrow x=25,y=45

So, the current age of victor is 45 and his daughter is 25

8 0
2 years ago
What mathmatical concepts did e.harrison use to support the claim?
sergey [27]

umm, i the the desuetude what no one sec.

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=3%5Csqrt%7B5%7D" id="TexFormula1" title="3\sqrt{5}" alt="3\sqrt{5}" align="absmiddle" class="l
adoni [48]

Answer:

3/5???

Step-by-step explanation:

6 0
2 years ago
Which expressions are equivalent to 3x
musickatia [10]

x is powering both numbers so it can be outside the parenthesis.

We have given that 3^x.

<h3>What is the expression?</h3>

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

The first one isn't an answer because 3^x is exponential while x^3 is a cubic function.

If you draw them you will see that they are very different.

B is correct because we can divide both numerator and denominator by 6 and we get 3^x.

C is not correct because x is not powering 3 so we cannot divide both by 6D is correct because 3^(x-1) is the same as

and when multiplied by 3 we get 3^x

3^x*3^(-1) = 3^x/3

E is not correct.

will understand after the explanation in DF is correct.

x is powering both numbers so it can be outside the parenthesis.

The question is incomplete the complete question is,

Which expressions are equivalent to the one below? Check all that apply.

3^x

A. x^3

B.(18/6)^x

C.18^x/3

D.3(3^(x-1))

E.3(3^(x+1))

F.18^x/6^x

To learn more about the  expression visit:

brainly.com/question/723406

#SPJ1

7 0
2 years ago
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