aracelic0104owjlqb aracelic0104owjlqb
  • 03-01-2018
  • Mathematics
contestada

please help me out would appreciate it

please help me out would appreciate it class=

Respuesta :

pmayl
pmayl pmayl
  • 03-01-2018
We can out the entire left side in terms of a, and then subsitute 5 for a
ab/ (a+b) = c       
b =-1 + a               Substitue (-1 + a) for b
a*(-1+a)/(a+-1+a)=c
(-a+a²)/(2a-1)=c            Subsitute 5 for a
(-5 + 25)/(10-1) = c
20/9 = c

Answer is A) 20/9
Answer Link

Otras preguntas

Fill in the blanks below. Find the slope of the line passing through the points (7, 7) and (7-8). slope: Find the slope of the line passing through the points (
Solve for X in the diagram below
Solve for x. Justify each step using the properties of equality. Be sure to include your check! -4 = r/20 - 5
3. According to the Declaration, when do people have a right to revolution? Why do they have this right?
answer these please someone deleted the last one
Which set of coefficients will balance this chemical equation? C2H4(g) + _O2(g) → 2C02(g) + 2H2O(g)
What is (z + 2) + (z + 6) ?
how to find it is related to the opposite angle in a cyclic quadrilateral is equal to 180 degeres
x + x + x = 54 What’s the answer for this
Where did the Jews become enslaved? A.Mecca B Egypt C Eden