Answer:
\(13,846\ cones\)
Step-by-step explanation:
Let
x -----> the number of ice cream cones sold 5 years ago
Remember that
\(100\%+30\%=130\%=130/100=1.3\)
we know that
Sales 5 years ago, multiplied by the 30% increase should equal 18,000 ice cream cones.
so
The linear equation that represent this problem is
\(1.30x=18,000\)
Solve for x
Divide by 1.3 both sides
\(x=13,846\ cones\)