Question

2. Which of the situations described below
can be modeled by the equation
n+0.5n-0.3n = 1.2n, where n is the
number of nickels originally in the jar?

Answer 1

ANSWER

C

EXPLANATION

From the given question.

Assume that n equals 1 initially.

Then n would equal 1 then add 50% (0.5) then take 30% (0.3) which equals 1.2.

$\begin{gathered} n=1 \\ 1+0.5-0.3=1.2 \end{gathered}$