- #1
Maxer
- 2
- 0
Hi
i am in us military and over the years i have lost my mathematical skills so picked up a book from library to solve simple equations..
i couldn't figure out few problems.. i will show you my work and then you guys can explain where i messed up. i have the correct answers but that does not matter i would like to understand the concept.
Some of these problems are elementary level but i have not done this for a while. There are no Math teachers here i can get help from so you guys are my only help, i am currently stationed in Turkey and Probably going to be in Iraq a lot from here on out.
I also try not to use the calculator because i really suck at math so harder it is better i will get at it so please just correct my simple mistake although I did check my work over but i could be wrong about most simple things.
thank you very much for your help
here are the problems
1. A = 1/2h(B1 + BA2)
Solving for H
A= 1/2ba1 + 1/2ba2
-1/2ba1A = 1/2ba2
----------------------
-1/2BA1A -1/2BA1A
H = - hB2 / B1A
thats what i got but its wrong
correct answer in the book is = 2a / B1 + B2
I tired it several times please explain step by step how to arrive at the correct answer.
2. 1x + 2(1/6x + 2) = 6/5x + 16
Solve for X 90
1x + 1/3x + 4 = 6/5x + 16
4/3x = 6/5x + 12 <-- i think i messed up here somewhere in the fractions i am not good with those.
4/3x - 6/5x = 12
some How X = 90 in the book
i got stuck at this problem so i need help on this one too..
i suck at fractions i am reviewing that right now.
I didn't know how to make that PIE symbol on this so i wrote "#"
Also on this one i know its a minor mistake because i probably forgot how to divide or multiply a fraction or exponintial value.
# = pie
3. v= 1/3#*h^2(3R-h)
Solve for R
V= 3R*1/3#*h^2 - 1/3#*h^3
V + 1/3#*h^3 = 3R*1/3#*h^2
------------- -------------
1/3#*H^2 1/3#*h^2
V + h^1 = 3R
------- ---
3 3
R = v + h^1
--------
3
Correct answer in the book is
R= v + 1/3#*h^3 3v + #*h^3
------------- = -----------
#*h^2 3*#*h^2
you can explain much as you like more the better
thank you
Max
i am in us military and over the years i have lost my mathematical skills so picked up a book from library to solve simple equations..
i couldn't figure out few problems.. i will show you my work and then you guys can explain where i messed up. i have the correct answers but that does not matter i would like to understand the concept.
Some of these problems are elementary level but i have not done this for a while. There are no Math teachers here i can get help from so you guys are my only help, i am currently stationed in Turkey and Probably going to be in Iraq a lot from here on out.
I also try not to use the calculator because i really suck at math so harder it is better i will get at it so please just correct my simple mistake although I did check my work over but i could be wrong about most simple things.
thank you very much for your help
here are the problems
1. A = 1/2h(B1 + BA2)
Solving for H
A= 1/2ba1 + 1/2ba2
-1/2ba1A = 1/2ba2
----------------------
-1/2BA1A -1/2BA1A
H = - hB2 / B1A
thats what i got but its wrong
correct answer in the book is = 2a / B1 + B2
I tired it several times please explain step by step how to arrive at the correct answer.
2. 1x + 2(1/6x + 2) = 6/5x + 16
Solve for X 90
1x + 1/3x + 4 = 6/5x + 16
4/3x = 6/5x + 12 <-- i think i messed up here somewhere in the fractions i am not good with those.
4/3x - 6/5x = 12
some How X = 90 in the book
i got stuck at this problem so i need help on this one too..
i suck at fractions i am reviewing that right now.
I didn't know how to make that PIE symbol on this so i wrote "#"
Also on this one i know its a minor mistake because i probably forgot how to divide or multiply a fraction or exponintial value.
# = pie
3. v= 1/3#*h^2(3R-h)
Solve for R
V= 3R*1/3#*h^2 - 1/3#*h^3
V + 1/3#*h^3 = 3R*1/3#*h^2
------------- -------------
1/3#*H^2 1/3#*h^2
V + h^1 = 3R
------- ---
3 3
R = v + h^1
--------
3
Correct answer in the book is
R= v + 1/3#*h^3 3v + #*h^3
------------- = -----------
#*h^2 3*#*h^2
you can explain much as you like more the better
thank you
Max
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