Help me pls!!! my coaching teacher is going 2 kill me

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- AonZ

Help me pls!!! my coaching teacher is going 2 kill me

- chestercat

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- AonZ

\[\frac{ 2 }{ 9 } \]
of the people on a restaurant are adults. if there are 95 more children than adults, how many children are there in the restaurant

- Kuoministers

he really gonna kill u???

- AonZ

yes

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- Kuoministers

i would be dead scared ^^

- AonZ

pls help

- anonymous

Okay I'll try :)

- Kuoministers

7/9 people are children

- AonZ

i know
but in number?

- Kuoministers

how would i know..
@FirstFrostByte is pro

- AonZ

uhhhhh frost bite?

- anonymous

95 more children, so 7/9 of the people the children portion is 95.
Knowing that:
(7/9 - 2/9)*x = 95
5/9 * x = 95
So the total people would be:
95 * 9/5 = 171
Next we do:
2/9 *171 = 38
To get the adult count.
And this for the children count:
7/9 *171 = 133

- Kuoministers

im pretty sure u lost him

- anonymous

There are multiple ways to solve this...
I don't know which method he wants...

- AonZ

well i kinda like that method u just did

- anonymous

@AonZ
You know what a variable is right?

- AonZ

not really

- anonymous

Okay let me do this step by step.

- AonZ

ty

- anonymous

\[9/9\]would be everyone in the restaurant.
Given to us is 2/9 is adults.
So that leaves? 9 - 2 = 7
7/9 Must be children.
Do you understand so far before I continue?

- AonZ

yes

- AonZ

100%

- anonymous

For each "9" people there are 5 more then adults.
So:
Let's use a variable now which will be "P" for people.
5/9 * P = 95
Now let's flip over 95 to the other side.
95 * 9/5 (it becomes 9/5 due to a rule) = P
95 * 9/5 = 171
Correct?
Now we know the total amount of people. Do you understand?

- AonZ

ohhhhh i get now

- AonZ

i get the question

- AonZ

it is just that part that i got lost

- AonZ

yay so their is 133 children

- anonymous

Okay.
So:
Since we now know the total:
Next we do:
2/9(Adults) *171 = 38 Adults
And this for the children count:
7/9(Children) *171 = 133 Children
So there for 133 Children are in the restaurant.

- AonZ

and 38 adults

- AonZ

ty frost byte my coaching techer will not kill me now

- AonZ

done my homework

- anonymous

Haha :) I'm happy you didn't die.
There is another method you could do:
Take 95 / 5(Since we know there is 5 more children then adults.) And you get 19.
So you need 19 sets of 2 adults and 7 children to equal the total.
19 x 2 = 38 Adults
19 x 7 = 133 Children
Check your work:
133 - 38 = 95
See?

- AonZ

ohhhh i think this is a better method for me

- anonymous

I guess. But if your in Pre-Algebra. Go with the first method. I'm cleaner and faster.
And you'll use it more often too.

- AonZ

kk
cya

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