Question

PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!PLEASE HELP!!!!!
https://www.dropbox.com/s/7uqv623czzo77bb/Screenshot%202016-01-16%2022.45.53.png?dl=0

Answer 1

Well dang

Answer 2

hey candy man, can u help

Answer 3

wbu safa?

Answer 4

u seriously need help with this!

Answer 5

i'll try!

Answer 6

It is not necessary to post Please Help 37 times. You will receive help! :)

Answer 7

Stop calling me 'candy man.' It's getting annoying -_-

Answer 8

sorry bro

Answer 9

it has to be A, i think cuz in the beginning it said 450 is the product and the only one that has the answer of 450 is A

Answer 10

really? ಠ_ಠ

Answer 11

what?

Answer 12

u sure it's a

Answer 13

Would you please stop guessing at the answer and do some serious work towards finding it through algebra.

Answer 14

and it says the first number is half the second number A follows the steps it has 1/2 in it!!!! yes i'm sure its A sorry if i'm wrong :(

Answer 15

Please post your question instead of posting Help so many times. You will get help, just be patient! :)

Answer 16

mathmale...chill!

Answer 17

i'm sure she know what she's dong @mathmale

Answer 18

ikr!

Answer 19

chill

Answer 20

lol :)

Answer 21

anyway...do u know how to do it @mathmale ?

Answer 22

Don't give out direct answers, thank you! It is a violation against the rules of OS, we have a policy. "Give help, not answers." Do not continue to do this, thanks! :)

Answer 23

k sorry!

Answer 24

wow, in the end,ur just giving out warnings, can u please help me on this instead of listing to the code of conduct

Answer 25

please?

Answer 26

Choose two letters to represent the two (separate) numbers.
Do that now, please.

Answer 27

lol

Answer 28

do u mean using x?

Answer 29

wouldn't it be a cuz it says half of two numbers?

Answer 30

and a is 1/2

Answer 31

this is algebra, and algebra is based heavily on using symbols to represent unknowns.

Yes, I do mean "using x." Kindly pick one more letter to represent the other unknown.

Answer 32

so, one of your two numbers is represented by x. What letter will you choose to represent the other number?

Answer 33

1/2?

Answer 34

that's not a letter, jon. I asked y ou to pick a letter to represent the 2nd of the 2 unknown numbers.

Answer 35

So the first number is repres. by x and the second by .... what?

Answer 36

oh what about S

Answer 37

that's not a letter, jon. I asked y ou to pick a letter to represent the 2nd of the 2 unknown numbers.

Answer 38

In algebra we choose letters to represent unknown quantities.
In this problem you have to find the values of 2 numbers. The first one will be represented by x. The second will be represented by ... what letter ... ?

Answer 39

x^2

Answer 40

or do u mean to just choose a letter, what why i said s

Answer 41

OK, sorry. On my screen your " s " looked like a " 5 "

So, our two numbers are represented by x and s. Fine.

How would you write the product of x and s?

Answer 42

Note that the problem statement says that the product of x and s is 450.

Write that as an equation. you must use x and s. No words.

Answer 43

\[X*S=420\]

Answer 44

actually, jon, it's 450, not 420.

x*s = 450. So, we're half done!

Now read the problem again. What does the next sentence say?

Answer 45

oh sorry, um it says the first number is half the second number.

Answer 46

Yes. let x be the first number and let s be the second number.

Express "the first number is half the second number." symbolically, using x and s, no words.

Answer 47

so um 1/2s*s

Answer 48

which is larger, the x or the s? Be sure you know why.

Answer 49

x cuz it's the second number

Answer 50

The problem states that the first number (x) is half the second number (s).

Try again....translate that into symbols; write the equation that shows this relationship.

Answer 51

1/2x*x

Answer 52

ohhh so 1/2x^2

Answer 53

But, jon, that's not an equation.

The problem says, "the first number is half the second number."
That translates into x = s/2 (which IS an equation).

I keep hinting to you that you need to write an equation. 1/2x^2 is not an equation, is it?

Answer 54

s/2*x

Answer 55

?

Answer 56

but wouldn't it be s/2*s cuz it's the half of the secound number

Answer 57

again, jon, s/2*x is not an equation. You must (MUST) write an equation; the equation MUST involve the = symbol.

x is smaller than s, so x=s/2 makes sense. Is that an equation or is it not?

Answer 58

yeah it looks like an equation

Answer 59

but i don't get the term of s though

Answer 60

the answer choices are
225x^2 = 0
x^2 = 450
450x^2 = 0

Answer 61

It is an equation, jon.

So, now you you have 2 equations. First, the product of 2 numbers x and s is 450, so
your equation is x*s = 450.

Secondly, the first number (x) is half the second number (s), so x=s/2, or \[x=\frac{ s }{ 2 }\]

Answer 62

any questions about this, so far?

Answer 63

no, i get it so far

Answer 64

so now that x=s/2
would we need to divide 450 to get 225?
cuz 225*2=450

Answer 65

so, boldjon, we need to solve our set of equations for the values (numeric values) of x and s.

(x )(s ) = 450, and x=s/2.

please throw out the "x" within the parentheses ( ) and replace it with s/2. This is called "substitution."

Answer 66

I'd prefer to do one thing at a time. If you rreplace the "x" inside the parentheses, above, with s/2, you get


(s/2)(s)=450. does that seem correct to you"

Answer 67

To be as clear as possible, I mean the following:\[\frac{ s }{ 2 }(s)=450\]

Answer 68

yeah i see what ur trying to do, so yeah it looks correct to me

Answer 69

Good. then, we have:\[\frac{ s^2 }{ 2 }=450\]

Answer 70

\[\frac{ s^2 }{ 2 }=450\]

Answer 71

How would we get rid of the fraction (with 2 in the denominator)?

Answer 72

If you know how, do it.

Answer 73

substract from both side?

Answer 74

\[\frac{ s^2 }{ 2 }=450\]... does not involve addition or subtraction, so, no.

Answer 75

Multiply both sides by 2 and see where that takes you.

Answer 76

um .... i did 450*2 and i got 900

Answer 77

If you multiply \[\frac{ s^2 }{ 2 }\] ... by 2, the 2 in the numerator cancels out the 2 in the denominator.

Answer 78

that's correct. So, on the left side, you have s^2, and on the right side you have 900.

Answer 79

Can you solve this equation for s?\[s ^{2}=900\]

Answer 80

30

Answer 81

https://www.dropbox.com/s/ac01nqipt10ljlk/Screenshot%202016-01-16%2023.43.00.png?dl=0

Answer 82

that's right. You've found the "square root of 900," and that is, indeed, 30.

Answer 83

so a seems like the answer

Answer 84

Hold your horses (as my father used to tell me all the time).

s=30.

"x is half of s." find x.

Answer 85

15

Answer 86

Right. So, your answer SET is {15, 30}.

Off the hook yet? No. Sorry. You have to check your answers. Please multiply 15 by 30.

Answer 87

450, wow

Answer 88

well thanks

Answer 89

Isn't that what the problem statement said? "The product of 2 numbers is 450."

Answer 90

well the equation u used was the answer

Answer 91

https://www.dropbox.com/s/ac01nqipt10ljlk/Screenshot%202016-01-16%2023.43.00.png?dl=0

Answer 92

So now you can choose the correct answer without saying, "I think it's b." ;)

Answer 93

Yes, you have chosen the correct answer. I won't say "It's A" because I hate that phrase.
;)

Answer 94

I demand reasons, good reasoning, showing of one's work, and so on.

Thanks for sticking with me through this long discussion. Take care, boldjon.

Answer 95

guess what would have happend if i had put B

Answer 96

lol thanks for the explanation though

Answer 97

You'd have to go outdoors and rub your nose in the mud.

Answer 98

probably