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Use ratios...
height of object/length of shadow = height of other object/other length of it's shadow

ok, but I do not understand

So I multiply now

ya so now cross multiply

set those equal to each other and cross multiply

I am lost

you've got your ratios set up?

yes

ok so now cross multiply:

4.5x=36

hold on

ok

yes

then finish solving for x

Divide by 4.5

right

ok give me a sec

ok

I got 8ft tall

that's right!

well there you go!

Thanks so much

welcome

You're welcome :)

lol

You are good

ty

You like math

no i really dont

I do Haha

lol

hey you know anything bout radiation in Japan?

Can you help me with 1 more?

sure

Just from the news

its for my hw i need to know about the rafdiation stuff

A map uses a scale of 1 centimeter for each 5 kilometer

I can tell you what I have seen

If the distance on a map from City A to city B is 17.5 cm

what is the distance between the cities in kilometers

and in miles

well i dont know about miles

but i can help you with the other thing

There are 2.54 cm in 1 inch and 5280 ft in 1 mile

ok, thanks

so you know that for eveery centimeter it is equal to 5 kilometers

What do you need to know about the radiation?

yes

w8 lemme help you with your stuff then you tell me radiation blah blah

Use ratios again....
cm/km = cm/km or
1/5 = 17.5 cm/x

ok

then cross multiply

yup exactly what he/she said

She :)

oh ok lol

would 1/5 be over 1

no, just leave it as 1/5

How can it be cross multiplied?

1 * x = 5 * 17.5

yea

85

I meant 87.5

Yes, 87.5 km

lol 64 replies!!!!!!!!!!

65

to this question

Ha!

Now to convert 87.5 km to miles?

Convert km to cm, then cm to inches, inches to feet, and feet to miles

I am not good with geometry

there are 1000 meters in one km, so first multiply by 1000

Will that -= the miles

so it's 8,750,000 cm

we would g through all the steps to get to the miles, correct?

You have to be careful though. There are 2.54 cm in 1 inch, so this time you DIVIDE by 2.54

ok

36 inches in 1 ft, so DIVIDE by 36

You would divide 8,750,000 by 36?

no, divide by 2.54 first

ok

then that answer by 36

95691 miles

then last step, 5280 ft in a mile

yes, but don't round the answer until you have divided by 5280

and round answer to however many decimal places you need

I got 18.12 miles

Correct!

Thanks

Hmmmm, that doesn't sound right....let me double check my work :)

NO, that IS right...I was thinking about something else...Sorry :)

ok

Haha, I'm confusing myself....let me check that

I messed you up....so, sorry....there are 12 inches in a foot....OOPS

we used 36.....sorry about that

ok, how far do I go back?

I am trying to scroll up

we're gonna make the world record for most replies on open study

Ok, doing that now, did you see my response abt the radiation?

I got 54.37 miles

Yes, that is correct....AND that answer makes sense LOL Sorry about the other. It's right now :)

oh i didnt notice that thank you!

Thanks

You're welcome...I'll let y'all chat about Japan now :)

A lot of people has been diagnosed with radiation, and some are bad

Thanks so much

hey you know where you got that info like what was the news channel?

It was my local news.

I bet you can get more information on-line

maybe type in radiation in Japan

I know it is ABCnews.com

I am checking to make sure it is correct

I am here seeing if I can post the link

wait i got it

no waIT no

ok, great

Wait that one is not local

thank you

that was nt about it being in the U.S. was it?

um no it's about radiation in thje food and water

Darn, my page all scrambled, i am tying to clear it

ok

Is that ok

Hello

yes

ok, great

ty

Thanks for your help today and it was nice to meet you

you too

could you fan me?

I do not know how to

it says become a fan next to my name

Where, I do not see it

Where it says NY,NY it says star (11 fans next to that it says become a fan

It does not say that on my screen

I see everything except become a fan

but it should there is a thumbs up picture and nexto it it says Become a fan

The thumbs up is not there

Are you still here

yes sorry

Thats ok, if I attache a file can you see it

It has my homework on it and it is geometry, I am about to fail it and ned help

need

um w8 im sorry im doing homework

I am about to get back to my work as well. thanks for all your help

your very welcome

will you stay online ?

ltkrlkmh;kjdhjej kheeetj kjer;k;byet

uh radar, you do understand this question is from 6 DAYS AGO?????????

but if it is feet to inches then isnt it 3 ft: 4.5 in?
where does 36 come from?

3 ft is 3 *12 = 36 in.

The 3 ft yardstick cast a shadow of 4.5 inches.

Radar, you are correct. I completely overlooked that when I was working that problem.

oh! lol