Fan and Medal

- anonymous

Fan and Medal

- Stacey Warren - Expert brainly.com

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- chestercat

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- anonymous

@jim_thompson5910, @dan815

- anonymous

@jdoe0001 ,@emily_wilson

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## More answers

- anonymous

@emily_wilson

- anonymous

r u there

- anonymous

yeah

- anonymous

can u help me with my homework its algebra 1

- anonymous

Okay I can try, am I supposed to do all of that?

- anonymous

ill do it with u though

- anonymous

@beckyg111

- anonymous

what is the paper/book called?

- anonymous

springboard

- anonymous

the green/rainbow one?

- anonymous

ya why

- anonymous

I cant read all of the picture

- anonymous

which one

- anonymous

13

- anonymous

@haleyright

- anonymous

13 right?

- anonymous

yeah mostly just the word problems

- anonymous

the 2 cutoff words are equation and equal

- anonymous

@dan815

- anonymous

@jim_thompson5910

- haleyright

this is hard

- anonymous

i know

- haleyright

srry

- anonymous

@_alex_urena_

- haleyright

i tried to understand but its complicated

- anonymous

ok

- anonymous

anybody there who can help me

- anonymous

pls @dan815

- anonymous

@kiamousekia

- anonymous

yay @jim_thompson5910 ur here

- anonymous

and @dan815

- jim_thompson5910

which one are you stuck on?

- anonymous

i need help on 13-15, 17, 21, 25, 26, 27:b, 28, 34, 35, 36, 37, 38, 39:a,b, 40.
i know its a lot pls forgive me

- anonymous

nvr mind i dont need help on 28

- anonymous

@jim_thompson5910 , @dan815 r u there

- jim_thompson5910

well there are a lot of similar problems, so why not do it where we help with a few and you practice on the rest?

- anonymous

ok

- anonymous

lets start with 13-15

- dan815

okay so lets saw for a member
for 1 year he just pays 35
a NON-member will pay lets say 5 dollars every time he uses the gym
let n the number of uses
lets see at what number of uses the
member = non member
35=5*n
when n=7, 5*7=35
so a non member if he uses the gym 7 times he will pay the same as a guy who payed for a whole year, if he uses the gym more than 7 times he will have to pay more than the guy with a membership, if he uses the gym less than 7 times he will have to pay less
Now for your question instead of 5 dollars every time he uses, they have a different number or some random number k

- jim_thompson5910

I'm stumped. It seems like there's information missing in #13. How much does it cost per visit? It doesn't say.

- jim_thompson5910

is the problem cut off or something?

- anonymous

no

- jim_thompson5910

@dan815 where did you get those values from?

- anonymous

it says that the cost of being a member of the frequent visitor program = the cost of not being a member

- dan815

just made it up for an example, instead of 5 i think ninja has to use a variable there

- anonymous

the variable is n

- anonymous

which is the number of visits per year

- anonymous

@dan815

- anonymous

he left

- jim_thompson5910

well I still think there's missing info, but anyway, let's say the cost per day is k dollars. The k is some unknown number
if you visit n times for that year, then it costs k*n dollars

- anonymous

@_

- jim_thompson5910

set that equal to the 5 dollar yearly fee to get
k*n = 5

- jim_thompson5910

make sense?

- anonymous

so thats the equation for 13, right?

- jim_thompson5910

do you see how I formed it?

- anonymous

yes

- anonymous

what about 14 and 15

- jim_thompson5910

I think they want you to solve for n

- jim_thompson5910

in #14

- anonymous

oh let me try

- anonymous

is it 5?

- jim_thompson5910

get n all by itself in the equation `k*n = 5`

- anonymous

oh let me try it that way

- anonymous

how do u divide 5 by k

- anonymous

nvr mind how do u get n by itself

- jim_thompson5910

you just leave it like that, so you'd have
\[\Large n = \frac{5}{k}\]

- jim_thompson5910

that's what you'd have after dividing both sides by k

- anonymous

and then

- jim_thompson5910

if you knew the value of k (the number it represents), then you could replace k with that number and divide

- jim_thompson5910

but we don't know what k is so we leave it like 5/k

- anonymous

ok so thats #14

- anonymous

is it?

- jim_thompson5910

yeah

- anonymous

ok

- anonymous

#15

- anonymous

how do u do number 15

- anonymous

nvrmind i know that

- anonymous

#17??

- jim_thompson5910

what would be the answer to #15

- anonymous

actually i dunno could u help me

- anonymous

u there

- jim_thompson5910

give it a try and tell me what you think

- anonymous

is it 5 divided by the money.......i dunno!

- jim_thompson5910

what does n represent

- anonymous

the # of visits??

- jim_thompson5910

yes, so 5/k represents the number of visits (because it's equal to n)

- jim_thompson5910

if k = 1, then 5/k = 5/1 = 5
basically saying if the price per visit is $1, then you'd have to make 5 visits for the two costs to be equal

- anonymous

ok thank u very much

- jim_thompson5910

no problem

- anonymous

what about #17

- anonymous

8x + 5 = 3x + 15
solve for x

- anonymous

ok

- anonymous

bye

- anonymous

wait wat

- anonymous

.

- anonymous

no wait

- anonymous

@jim_thompson5910

- anonymous

r u there

- jim_thompson5910

can you get all the x terms to one side? and everything else to the other side?

- anonymous

let me try

- anonymous

is it 8x+3x = 5+15

- jim_thompson5910

no

- jim_thompson5910

to move that 3x over, you have to subtract 3x from both sides

- anonymous

:O

- jim_thompson5910

you need the 3x on the right side to turn into 0x or 0
3x-3x = 0x = 0

- jim_thompson5910

|dw:1441242757695:dw|

- jim_thompson5910

|dw:1441242784001:dw|

- jim_thompson5910

|dw:1441242807116:dw|

- anonymous

oh ok then it will be 5x+5=15

- anonymous

@pooja195

- anonymous

r u there @jim_thompson5910

- jim_thompson5910

|dw:1441242986486:dw|

- anonymous

i was right

- jim_thompson5910

Now subtract 5 from both sides
|dw:1441243014153:dw|

- jim_thompson5910

|dw:1441243025086:dw|

- anonymous

it will be 5x=10, right?

- anonymous

my final answer will be x=2

- jim_thompson5910

yes

- anonymous

yay!!

- anonymous

now can u help me with #26?

- anonymous

what time is it for u?

- jim_thompson5910

what do you have so far for #26 ?

- anonymous

nothing cause i dont get it

- anonymous

u there?

- anonymous

i need help!

- anonymous

@me10000 my buddy

- jim_thompson5910

have you heard of the distributive property?

- anonymous

yes

- anonymous

I am not sure if I know this sorry....

- anonymous

oh now i get it the 2nd step is distributive property, right?

- jim_thompson5910

yeah because `2(x-1)` turns into `2*x+2*(-1)` which becomes `2x-2`

- jim_thompson5910

same with the `-3(x+2)`

- anonymous

ok what about the other steps

- jim_thompson5910

how are they simplifying line 2 to get line 3?

- anonymous

2x-3x - 2- -6
=-1x - 8

- anonymous

the other side stays the same

- jim_thompson5910

how is that left side simplified? what happened?

- anonymous

You got this slice...

- anonymous

i combined like terms

- anonymous

thanks for the encouragement @me10000 i would have been a goner if it wasnt for @jim_thompson5910

- anonymous

@jim_thompson5910 r u there

- jim_thompson5910

`i combined like terms` good
so the reasoning is simply "combine like terms"

- jim_thompson5910

there's no fancy math term needed

- anonymous

Yep pm me if I can be of any assistance... With anything there than this...

- anonymous

lol ok

- anonymous

next step looks more complicated

- jim_thompson5910

what's the change from line 3 to line 4?

- anonymous

let me see

- anonymous

they are trying to get the variable alone

- anonymous

or are they??

- jim_thompson5910

yeah that's the ultimate goal

- jim_thompson5910

focus just on line 3 and line 4
what changes?

- anonymous

they are adding 4x to both sides

- jim_thompson5910

yep

- jim_thompson5910

they are using the additive property of equality

- jim_thompson5910

additive property of equality
if a=b, then a+c = b+c

- anonymous

oh now i get it

- anonymous

line 5 looks like the answer of line 4

- jim_thompson5910

what changed here

- anonymous

i dunno

- anonymous

r u there

- anonymous

did u leave?? oh no!

- jim_thompson5910

what changed from -1x+4x-8 = 8-4x+4x to 3x-8 = 8
look closely

- anonymous

nvrmind ur here i got scared

- anonymous

-1x+4x became 3x

- jim_thompson5910

so you combined like terms

- jim_thompson5910

same for -4x+4x = 0x = 0

- anonymous

oh ok

- anonymous

Let me guess: the next line is additive property of equality, right?

- jim_thompson5910

why would it be that rule?

- anonymous

Because they are adding 8 to both sides. Am I right?

- jim_thompson5910

good

- anonymous

Yay!!

- jim_thompson5910

I'll be right back.

- anonymous

the next line is combine like terms

- anonymous

ok

- anonymous

tell me when ur back

- anonymous

r u there yet

- anonymous

hello??

- jim_thompson5910

`the next line is combine like terms` correct

- anonymous

the next line is division property of equality, right?

- jim_thompson5910

correct

- anonymous

the last step is combine like terms, right?

- jim_thompson5910

no, it's to convert the improper fraction to a mixed number

- anonymous

oh ok thanks

- jim_thompson5910

np

- anonymous

whats #27

- anonymous

u there

- jim_thompson5910

what did you write in pencil? I can see something faintly written

- anonymous

thats for part a of the question. its this: 4w+12(w-1)=36

- jim_thompson5910

what does w represent

- anonymous

im sorry but i forgot it was for

- jim_thompson5910

how did you form the equation?

- anonymous

i copied from my teacher

- jim_thompson5910

and you don't remember how the teacher got it?

- anonymous

the teacher was ina hurry

- jim_thompson5910

give a guess what w represents

- anonymous

the total distance?

- jim_thompson5910

w = walking
w is the time spent walking

- jim_thompson5910

in hours

- jim_thompson5910

so w-1 is the time spent biking (1 hour less)

- anonymous

oh ok

- jim_thompson5910

if you walk for w hours, and you walk at a speed of 4 mph, then how far do you walk?

- anonymous

4*w

- anonymous

u there

- jim_thompson5910

yep, how far do you go when you bike?

- anonymous

12*w

- anonymous

is it?

- jim_thompson5910

not just w though

- anonymous

then what?

- anonymous

is it 12*w-1

- jim_thompson5910

the 12(w-1) like you wrote

- jim_thompson5910

12 times (w-1)

- anonymous

yes i was right the second time

- jim_thompson5910

so the two distances add to get `4w+12(w-1)`

- jim_thompson5910

that's how he got that left side

- anonymous

now we find the value of w, right?

- jim_thompson5910

yeah for part b

- anonymous

im doing it

- anonymous

i found it: x=3

- anonymous

am i right?

- jim_thompson5910

w = 3 is correct

- jim_thompson5910

so he walked for 3 hrs and biked for 2 hrs (since w-1 = 3-1 = 2)

- anonymous

how did he walk 3 hrs though?

- jim_thompson5910

you just solved to get w = 3

- anonymous

ya so?

- jim_thompson5910

w represented the number of hours walked

- anonymous

oh ok thanks now i get it.

- anonymous

thnks for everything bro ur the best.

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