Question

Solve the equation. Then check your solution.등 2 - 110Na.311C.90312b.d.SOSO81Please select the best answer from the choices provided

Answer 1

Solve the equation.

`\begin{gathered} (5)/(9)d=(9)/(10) \\ d=(9\cdot9)/(5\cdot10) \\ =(81)/(50) \\ =1(31)/(50) \end{gathered}`

To check substitute the 81/50 for d in the equation.

`\begin{gathered} (5)/(9)\cdot(81)/(50)=(5)/(9)\cdot(9\cdot9)/(5\cdot10) \\ =(9)/(10) \end{gathered}`

The result is 9/10. So it is verify that 81/50 is the value of d.

Answer: 1 31/50

Correct Option: B