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Mathematics 17 Online
OpenStudy (anonymous):

MATCH THESE FOR ME PLEASE♥ http://oi45.tinypic.com/2nriyvq.jpg

razor99 (razor99):

well um do u have a formulae or something

OpenStudy (anonymous):

No. That's why I posted it, I don't know a thing about it.

razor99 (razor99):

according to my guess its an account question right

OpenStudy (anonymous):

A what?

razor99 (razor99):

oh kay never mind srry for confusing

OpenStudy (anonymous):

Anyone else help?

razor99 (razor99):

hey kaddie do u know how to convert the in to percentage

OpenStudy (anonymous):

Umm. no.

razor99 (razor99):

oh okay

OpenStudy (anonymous):

Can you help me please?

razor99 (razor99):

well um lets see i am thinking lol

OpenStudy (anonymous):

Think a lil' faster lol

razor99 (razor99):

yep

razor99 (razor99):

well um mark·up means The amount added to the cost price of goods to cover overhead and profit

OpenStudy (anonymous):

@jim_thompson5910 I'm not quite getting it?

razor99 (razor99):

wait i got the first one answer yaaa

razor99 (razor99):

its 2310

razor99 (razor99):

hello u there

OpenStudy (anonymous):

yeah

razor99 (razor99):

second one answer is 2520

razor99 (razor99):

thisrd one answer is 2100

razor99 (razor99):

fourth one is 2700

razor99 (razor99):

pice of cake

razor99 (razor99):

um do u wont the working

OpenStudy (anonymous):

Yes please:)

OpenStudy (anonymous):

And Thanks btw

razor99 (razor99):

oh okay

razor99 (razor99):

do u have a calculator

razor99 (razor99):

if u have please take it

razor99 (razor99):

then i could show u hoe

OpenStudy (anonymous):

.. okay I got one.

razor99 (razor99):

ssrry lol i wos about to say have intsead i said hoe srry

razor99 (razor99):

so the first question write it on a book too okay

razor99 (razor99):

firs in a fraction right 110 and right 100 in down and multiple it by 2100

razor99 (razor99):

did u get it

jimthompson5910 (jim_thompson5910):

110% markup on $2,100 = 110% of 2100 110% markup on $2,100 = 1.10*2100 110% markup on $2,100 = 2310 --------------------------------------------------------------------------- 12% income tax paid on $21,000 = 12% of 21000 12% income tax paid on $21,000 = 0.12*21000 12% income tax paid on $21,000 = 2,520 --------------------------------------------------------------------------- The last two are found in similar ways to the first two.

razor99 (razor99):

yea thats good

razor99 (razor99):

thanx jim_thompson5910

jimthompson5910 (jim_thompson5910):

np

OpenStudy (anonymous):

http://oi47.tinypic.com/2j515cg.jpg

jimthompson5910 (jim_thompson5910):

Area of a Parallelogram: Area = Base * Height So the area of the parallelogram is what?

razor99 (razor99):

first one i coreect

OpenStudy (anonymous):

4*6?

jimthompson5910 (jim_thompson5910):

4 is not the height, the height has to be the perpendicular segment to the base

OpenStudy (anonymous):

So 4*3? Or 6*3?

razor99 (razor99):

yea jim i correct

jimthompson5910 (jim_thompson5910):

|dw:1357522126284:dw|

jimthompson5910 (jim_thompson5910):

base is 6, height is 3

OpenStudy (anonymous):

So 6*3??

jimthompson5910 (jim_thompson5910):

yep

OpenStudy (anonymous):

Okay, that equals C! So what for the trapezoid?

OpenStudy (anonymous):

So what now for the*

jimthompson5910 (jim_thompson5910):

Area of a Trapezoid: Area = (Height)*(Base1 + Base2)/2

jimthompson5910 (jim_thompson5910):

In this case, the height is 3 the shorter base (call it base1 is 4) the longer base (call it base2 is 12) So Area = (Height)*(Base1 + Base2)/2 Area = 3*(4+12)/2 Area = ???

OpenStudy (anonymous):

That's B! :)

jimthompson5910 (jim_thompson5910):

yep, so A is the only thing left and it turns out Area of a Triangle Area = (base*height)/2 Area = 4*4/2 Area = 16/2 Area = 8 square meters, which is A)

OpenStudy (anonymous):

http://oi47.tinypic.com/2jbo4nr.jpg One last question? Please? :P

jimthompson5910 (jim_thompson5910):

With replacement: P(Darnell and sister) = P(Darnell)*P(Sister) With replacement: P(Darnell and sister) = (1/5)*(2/5) With replacement: P(Darnell and sister) = 2/25 With replacement: P(Darnell and sister) = 0.08

OpenStudy (anonymous):

So that's C?

jimthompson5910 (jim_thompson5910):

yes because 0.08 = 8%

jimthompson5910 (jim_thompson5910):

Do you see how I got that?

OpenStudy (anonymous):

Yes, but could you please give me the answers. I've been on this practice exam for 5 hrs. D:

jimthompson5910 (jim_thompson5910):

so tell me how to get the second one and i'll check your work

OpenStudy (anonymous):

(mother and father) 2/5 2÷5= 0.4? But thats not a answer choice..

OpenStudy (anonymous):

OH WAIT!

OpenStudy (anonymous):

1/5*1/5= 2/5.. same thing? nvm..

jimthompson5910 (jim_thompson5910):

Without replacement: P(Mother and Father) = P(Mother)*P(Father) Without replacement: P(Mother and Father) = (1/5)*(1/4) Without replacement: P(Mother and Father) = 1/20 Without replacement: P(Mother and Father) = 0.05

OpenStudy (anonymous):

Why is it 1/4 on the second one? Is that because you drew the mothers name so her name cannot be drawn again?

jimthompson5910 (jim_thompson5910):

because after you pick one person, you have 5-1 = 4 people left to choose from

jimthompson5910 (jim_thompson5910):

if it was "with replacement", then you would replace or put the name chosen back in the hat

OpenStudy (anonymous):

Oh okay. Let me try the third one by myself.. 2/5*2/4= 9/10 9÷10= .9 But there is no answer for mine? D: What did I do wrong?

jimthompson5910 (jim_thompson5910):

it should be 2/5 * 1/4 because once you've chosen 1 sister, you only have 1 sister left to choose from

OpenStudy (anonymous):

Oh okay. 2/5*1/4=13/20 13÷20= 0.65? Again no answer for mine. What did I do wrong?

jimthompson5910 (jim_thompson5910):

there are 2 parents and 2 sisters

jimthompson5910 (jim_thompson5910):

oh youre still on the third one

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