Question

If a/b - d = 2c /b ,find the value of c when a =3 , b = 4 and d = -5. *​

Answer 1

Answer:

$\boxed{ c=\dfrac{23}{2} }$

Step-by-step explanation:

$\dfrac{a}{b} - d = \dfrac{2c}{b}$

Once $a =3 , b = 4, d = -5$

$\dfrac{3}{4} - (-5) = \dfrac{2c}{4}$

$\dfrac{3}{4} +5 = \dfrac{c}{2}$

$\dfrac{3}{4} +\dfrac{20}{4} = \dfrac{c}{2}$

$\dfrac{23}{4} = \dfrac{c}{2}$

$4c = 46$

$\boxed{ c=\dfrac{23}{2} }$

Answer 2

Answer:

11.5

Step-by-step explanation:

Make c the subject of the formula

C=(a-db) /2

Substitute the values of a, b and d into the equation