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Mathematics 10 Online
OpenStudy (anonymous):

Please Help

OpenStudy (anonymous):

@whpalmer4 help plz

OpenStudy (anonymous):

OpenStudy (anonymous):

@whpalmer4 this is the question please come help

OpenStudy (whpalmer4):

just line up the corresponding bits...a line segment connecting the first two points on the quadrilateral on the left will be congruent to a line segment connecting the first two points on the quadrilateral on the right, yes?

OpenStudy (anonymous):

MC: XT DP: QU WD: BQ CP: TU

OpenStudy (anonymous):

@whpalmer4 COME LOOK

OpenStudy (whpalmer4):

Just messing with you, good job! :-)

OpenStudy (anonymous):

LOL you got me made LOL

OpenStudy (anonymous):

Thanku

OpenStudy (anonymous):

Ur the best, do you have time to help me with a few more?

OpenStudy (whpalmer4):

I do, but I'm also in the process of making my lunch, so I may seem like I've wandered away for a few minutes at times. That's because I have wandered away for a few minutes :-)

OpenStudy (anonymous):

Ok thats ok, if anything just tell me

OpenStudy (whpalmer4):

So don't panic if I don't immediately respond, I will return and answer.

OpenStudy (whpalmer4):

I'm making pizza :-) Go post your question while I roll out the dough

OpenStudy (anonymous):

Cool, what kind of pizza?

OpenStudy (anonymous):

OpenStudy (whpalmer4):

asparagus, I think! maybe a bit of sausage as well. okay, what's the definition of an acute triangle?

OpenStudy (whpalmer4):

besides one that looks like you ;-)

OpenStudy (anonymous):

I think 11 is: D

OpenStudy (whpalmer4):

yes, D is an acute triangle.

OpenStudy (anonymous):

I think 12 is: 15

OpenStudy (whpalmer4):

It could be. Which measurement on the other deck corresponds to the 15 feet?

OpenStudy (anonymous):

um... 20?

OpenStudy (whpalmer4):

How did you come to decide that 15 was a good choice?

OpenStudy (anonymous):

lol the answer would be a deck with dimensions 10 by 15 15 is only measurement listed in answer choices...answer is 15

OpenStudy (whpalmer4):

Okay, so the original deck was 20 by 30, if you think that 15 is the scaled down measurement, that corresponds to the 30 on the original deck. That's all I was wanting you to tell me :-)

OpenStudy (anonymous):

so 15?

OpenStudy (anonymous):

can u help me with more plz? few

OpenStudy (anonymous):

OpenStudy (whpalmer4):

yes, 15 is correct

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

can u help me with these 2 that i just sent u

OpenStudy (whpalmer4):

on to the next one. do you understand what is being asked? I had to reread the problem a few times before I figured it out :-)

OpenStudy (anonymous):

Yes me 2

OpenStudy (whpalmer4):

So, the measurement on the drawing is 6 inches, and we have various scales. For example, if one of them is 2" : 4m, then we take 6"/2" = 3, and multiply 3*4m = 12 m to find the size in real life.

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

wait for #9 or 10?

OpenStudy (whpalmer4):

that was for #9

OpenStudy (anonymous):

oh ok LOL

OpenStudy (whpalmer4):

for 10, you need to know unit conversions. if there are specific ones you don't know, how could you find them out?

OpenStudy (anonymous):

1: 0.5 2: 36 3: 27 4:8

OpenStudy (anonymous):

that is what i got

OpenStudy (whpalmer4):

no... how many ounces in a pint?

OpenStudy (anonymous):

I am talking about #9

OpenStudy (whpalmer4):

oh, let me look, thought you were talking about 10!

OpenStudy (anonymous):

LOL

OpenStudy (whpalmer4):

oh, still not right. Let's take the first one. 1" = 6m. The diagram measurement is 6 inches. If 1" on the diagram represents 6m in real life, how much does 6" on the diagram represent in real life?

OpenStudy (anonymous):

Ok so none of them are right?

OpenStudy (anonymous):

helllo?? LOL

OpenStudy (whpalmer4):

making my lunch, remember? I think most of them are incorrect.

OpenStudy (anonymous):

LOL and ok

OpenStudy (whpalmer4):

Just work the problem again, you're in no danger of getting too experienced, I think :-)

OpenStudy (anonymous):

LOL ok i will try

OpenStudy (anonymous):

1inch: 6 metres is 6 x 1 inche to 6 x 6 metres 36 metres 3inches: 4 metres is 2 x 3inches : 2 x 4 metres = 8 metres 2 inches: 9 metres is 3 x 2 inches: 3 x 9 metres = 27 metres 12 inches: 1 metre is 0.5 x 12 inches: 0.5 x 1 metre = 05 metres

OpenStudy (anonymous):

i got these answers are they correct

OpenStudy (whpalmer4):

last one should be 0.5 meters, no?

OpenStudy (whpalmer4):

otherwise, looks good!

OpenStudy (anonymous):

ok thank u i am solving 10

OpenStudy (anonymous):

i don't get 10

OpenStudy (whpalmer4):

okay, for 10, you need to convert from 1 unit to another. 8 pt = ____ oz. 8 pt * 16 oz/1 pt =

OpenStudy (anonymous):

128

OpenStudy (whpalmer4):

no, 128 oz

OpenStudy (anonymous):

of course

OpenStudy (anonymous):

AND THE SECOND ONE?

OpenStudy (whpalmer4):

well, do you know how many oz in a lb?

OpenStudy (whpalmer4):

what country do you live in?

OpenStudy (anonymous):

USA

OpenStudy (whpalmer4):

okay, wasn't sure, because while your test refers to a US curriculum, you used a non-US spelling of meters :-)

OpenStudy (whpalmer4):

so, if you don't know how many ounces are in a pound, you should at least know how to look it up.

OpenStudy (anonymous):

1lb = 16 oz

OpenStudy (whpalmer4):

very good. so that means we divide both sides of the equation by 16 oz to give us \[\frac{ 1 \text{ lb}}{16 \text{oz}} = \frac{16 \text{oz}} {16 \text{oz}} = 1\]We can multiply by 1 without changing anything, so we have \[40 \cancel{\text{oz}} * \frac{1\text{ lb}}{16\cancel{\text{ oz}}} = \frac{40}{16} \text{ lb} =\]

OpenStudy (anonymous):

so D

OpenStudy (anonymous):

THANK U HOW ABOUT THE THIRD ONE

OpenStudy (whpalmer4):

Yes, D is correct. If you do unit conversions in this fashion, you have a built-in error check: if the units don't cancel properly, you know you've done it wrong. On the other hand, if you just multiply or divide by random numbers, you're never going to be quite as sure that you've got the right answer.

OpenStudy (anonymous):

ok third one plz help i think it is a

OpenStudy (whpalmer4):

Yes, a is correct.

OpenStudy (anonymous):

OK THANK U

OpenStudy (anonymous):

OpenStudy (anonymous):

plz help with these 2

OpenStudy (anonymous):

This is what i got for #7 1st conversion = D 2cd conversion = C 3rd conversion = A and, 4th conversion = B

OpenStudy (whpalmer4):

okay, these are the last two. kilo = 1000 hecto = 100 therefore to go from kilo to hecto you multiply by 1000/10 = 10 milli = 1/1000 deci = 1/10 to go from milli to deci you multiply by (1/1000)/(1/10) = (1/100) (divide by 100) to go from milli = 1/1000 to liters (1) you multiply by (1/1000)/(1) = (1/1000) (divide by 1000) to go from deka = 10 to centi = 1/100 you multiply by (10)/(1/100) = 10*100 = multiply by 1000

OpenStudy (anonymous):

so the last 2 i got them wrong?

OpenStudy (whpalmer4):

first one is multiply by 10, which is C second one is divide by 100, which is D third one is divide by 1000, which is A fourth one is multiply by 1000, which is B the last two you got right, the first two you got wrong

OpenStudy (whpalmer4):

anyhow, I'm just telling you to do the conversions, matching them up with the correct answer choices is your responsibility. for the final problem, convert the 4 millimeters to decimeters and then compare. or convert the 5 decimeters to millimeters and compare. should be the same answer either way. my lunch is ready, time to eat! good luck!

OpenStudy (anonymous):

OH OK THANK U and what about the #8

OpenStudy (anonymous):

Ok thank you so much for everything and enjoy ur pizza bye

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