Posted by **ASDFGHJKL;** on Thursday, November 10, 2011 at 5:00am.

A = h/2 (a+b)

the subject of the given formula is "a" not "A"

please include workings (along with solution) thanks

- Math -
**ASDFGHJKL;**, Thursday, November 10, 2011 at 5:02am
this topic that i learned in class is "changing the subject of a formula" FYI

- Math -
**drwls**, Thursday, November 10, 2011 at 5:11am
Use algebra to derive the formula for a in terms of h, A and b.

You should use parentheses to show if (a+b) is part of the denominator of a fraction h/[2(a+b)], or not. I will assume you mean

A = (h/2)*(a+b)

a + b = 2A/h

a = 2A/h -b

- Math -
**ASDFGHJKL;**, Thursday, November 10, 2011 at 5:15am
God bless you. Thanks!

## Answer this Question

## Related Questions

- Math - S = n/2 (a+1) The subject of the formula is L Same as before, please ...
- Math - Sorry for repeated questions, but this is my last problem: s = ut + 1/2(...
- Math - 2 Questions - 1. (1/4)C/C+(1/3) 2. (1/X)+(1/Y)/(2/X) Please include ...
- Math - 4C/(10C-5D) + 2D/(6C-3D) Please include workings thx
- Math - 5 4 ______ - ______ 2(e-f) 3(f-e) Please include workings thx
- To Desire - Your posts have been removed, mainly because you have given ...
- maths-check my answers - Please check my answers 1) make c the subject of the ...
- Math - The numerator of a fraction is two less than its denominator. When both ...
- math - Given P=RT/V, make T the subject of the formula
- Trigo! - Ok, i've tried this sum a million times and i cant get an answer. ...