Question

The number of pens sold on Monday, p, increased 45% on Tuesday. The expression p+0.45p represents the number of pens sold on Tuesday. What is another expression that can be used to find the number of pens, p, sold on Tuesday?

Answer 1

1.45p

Explanation:

Here, we want to write another expression other than what we have already to represent a 45% increase in the number of pens sold

We simply find 45% of the number of pens sold the previous day

Mathematically, that would be

45/100 * p = 0.45p

we now add this to the sales made the previous day

= p + 0.45p

if we finally add both, we will have p(1 + 0.45)

= 1.45p