Posted by **i could not do it can u??** on Monday, February 25, 2013 at 1:28am.

a,b and c are real numbers such that ab=44, bc=112 and a+c=13. What is the value of b?

- algebra -
**Damon**, Monday, February 25, 2013 at 1:31am
a = 44/b

c = 112/b

so

44/b + 112/b = 13

156 = 13 b

b = 12

- algebra -
**Calvin Lin**, Tuesday, February 26, 2013 at 8:49pm
This is a problem posted by Brilliant (dot) org, which provides weekly problem sets for students to work on independently.

Please refrain from posting your solution for this student to copy.

-Calvin Lin

Brilliant Challenge Master

## Answer This Question

## Related Questions

- algebra - a,b and c are real numbers such that ab=44, bc=112 and a+c=13. What is...
- algebra 1 - If a and b are any real numbers such that 0<a<1<b, which ...
- Algebra - What is the smallest integer value of c such that the function f(x)=x...
- adv algebra hw - Let x,y,z be positive real numbers such that: xyz=945 x(y+1)+y(...
- Math (Algebra) - A and B are real numbers such that the two quadratic equations ...
- Linear Algebra - Let vector 'v' = (1,1) and vector 'w' = (1,-1). a)Find real ...
- Math (algebra) - Let x and y be real numbers satisfying 4x^2+5y^2=1. Over all ...
- Real Analysis - Let a be a real number and let m, n be natural numbers such that...
- Algebra 2 - 3. Identify the vertex and the axis of symmetry of the graph of the ...
- algebra - true or false 1. fraction cant be written as decimal. 2. natural ...

More Related Questions