A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1yes, so when you do that what will you get?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1\[\frac{ab}{b}=\frac{c}{b}\] \[a=\frac{c}{b}\]

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Oh! now i get it, can you set up another example so i can try?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Ok, divide ax with a, then divide c with a getting ax/a+y=c/a. You then simplify that getting x+y=c/a. Then you take both sides minus y getting x=c/ay

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1Really close but we need to either get rid of the y first before divide or also divide the y by a

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3YES! Thanks for teaching me :)

abdul_shabeer
 3 years ago
Best ResponseYou've already chosen the best response.0No, first start by subtracting y from both sides

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Alright, so ax+y=c ax=cy x/a=c/ay x=c/ay

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1remeber that when you divide the a you need to do it to all the terms

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2Inopeki got the answer i just put it in the equation maker for ease of the viewers

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1inopeki you need to write x=(cy)/a just to make it clearer. i see it now good work

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Thanks for the help :) Is there any way you can make it a little harder to give me a challenge?

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2yea i will come up with one for you

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2\[\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\] Solve for T_2

FoolForMath
 3 years ago
Best ResponseYou've already chosen the best response.0Nobody mentioned division by zero ?!!

abdul_shabeer
 3 years ago
Best ResponseYou've already chosen the best response.0Good observation @ Foolformath

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Well to begin with i need to multiply both sides with P2V2, getting P1V1/T1*P2V2, right?\[P _{1}V _{1}divT _{1}+P _{2}V _{2}=T2\]

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2I'll lay it out by steps for you

abdul_shabeer
 3 years ago
Best ResponseYou've already chosen the best response.0Cross multiplication

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2lcd = T_1T_2 \[T_2P_1V_1=V_2P_2T_1\] \[T_2=\frac{V_2P_2T_1}{P_1V_1}\]

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Oh right, i see it now. You wanted me to put the things i was multiplying by(V2P2) in by the other things that were multiplied. That would mean my answer is right, but yours is simplified.

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2No because you need to multiply both sides by the lcd of \[T_1T_2\] first then we cancel one of the varibles out because they are the same on top and bottom. then we can break T_2 apart from the rest of the left side by division, your answer would look close but in the end it would be wrong

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3What is an lcd? What makes T1 jump up?

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2lcd= lowest common denominator

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Is a denominator the 1 in T1?

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2The denominator is what is on the bottom of the fraction, so when we do the left side we get \[\frac{T_1T_2P_11V_1}{T_1}\] and because we have the same thing on the top and bottom we can cancel out the denominator leving us with \[T_2P_1V_1\] and we do the same operation on the right side

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Why do we get T1 on both sides of the line?

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2because you are multiplying by t1t2 but on each side one of them will cancell

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2Good job that was a hard one

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Thanks, when am i going to get to learn this in school?

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2Not sure when you will cover that but it's a chemistry equation compariing similar gasses to determine preasure, temp, or volume. You might touch it in highschool sometime.

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Oh, cool. What should i do now?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1And then try this \[V=\frac{4}{3}\pi r^3\] Solve for r

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Divide both sides by rt, getting PV/rt=n, am i right? By the way, why is PV upper case?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Zed, isnt that for volúmes of spheres or something? exept r should be ^3

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2good question and i don't have an answer for you but in that equation they are all upercase but the little n but i made a mistake and didn't capitilize the RT

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Zed, im going to do yours now.

zbay
 3 years ago
Best ResponseYou've already chosen the best response.2yes you were right and that was the ideal gas law by the way

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Oh, that was a ^3! Divide both sides with (pi)r^2 getting V/(pi)r=4/3r, am i right sofar?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3What does the law state?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1okay so first step is to get r^3 by itself. what do you get?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Wait. I take back my first answer. First you divide both sides by 4/3(pi) to isolate r^3

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1good. have you done powers before and their inverses?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3I think so, what do you mean?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1okay so we have \[r^3=\frac{3V}{4}\] how do I get rid of the cubed part?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Oh, i have done powers but i dont recall doing inverses, is that like squareroot and cubicroot? I guess we need to get the "cubicalroot" out of r^3.

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3We should be able to just divide r by r 2 times.

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.33* and by itself i mean the root.

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1not quite see let's try this example to help explain it \[x^2=4\]\[x=\sqrt{4}\]\[x=4^{\frac{1}{2}}\]\[x=2\]

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3What? Can you explain that?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1okay so when we bring powers (eg 3) over the equation sign they turn to 1/powers (eg 1/3). if we look at squared when we bring it over it turns to 1/2 which is also known as the square root.

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3Why does it become 1/2?

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1the may be abit hard to follow but this is why. Let f(x)=y \[y=x^7\] \[\ln y=7 \ln x\] \[lnx=(lny)/7\] \[x=e^{(lny)/7}\] \[Inverse = f^{1}(x)=e^{(lnx)/7}\] \[ f^{1}(x)=e^{lnx^\frac{1}{7}}\]\[=x^\frac{1}{7}\]

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1Now usually when learning this we just accept this as fact that \[x^n=x^{\frac{1}{n}}\] where n is a positive integer

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1That was probably way too much information at once just use the rule in the above post and try to solve \[r^3=\frac{3V}{4}\]

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3So if r^2 becomes 1/2, then r^3 should become 1/3, right?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3That means that i have to maake r^3 to 1/3 and convert 1/3 to 4/12(to merge it with the right side). i then convert the right sides fractions too, getting 9V/12. Now i should be able to merge them, right? so i get r=13/12?

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3I screwed that up right...

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1Sorry we want to raise both sides by the power of (1/3)

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1so the left hand side will be \[(r^3)^{\frac{1}{3}}=r^{\frac{3}{3}}=r^1=r\]

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1okay the right side is good. we have \[(\frac{3V}{4})^\frac{1}{3}\]

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1remember on the left hand side we had r^3 and when raised it to the power of 1/3 the powers need to be multiplied.

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1yes exactly it's one of the rules for powers. here are others if you wanted to learn and practice http://www.math.com/school/subject2/lessons/S2U2L2DP.html

Inopeki
 3 years ago
Best ResponseYou've already chosen the best response.3So the answer is r^3*1/3=3V^3/4

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1yes and that simplifies to r=(3V/4)^1/3

Zed
 3 years ago
Best ResponseYou've already chosen the best response.1Well I'm off to sleep. I'll be on tomorrow if you want more examples or help :)
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.