Question

In the formula l = p + prt, what does l equal when p = 500, r = 20%, t = 2?

Answer 1

To find the value of \( l \) in the formula \( l = p + prt \), we need to substitute the values of \( p \), \( r \), and \( t \) into the equation.

Given:
- \( p = 500 \)
- \( r = 20\% = 0.20 \) (as a decimal)
- \( t = 2 \)

Now, plug in these values into the formula:

\[
l = 500 + 500 \cdot 0.20 \cdot 2
\]

First, calculate \( 500 \cdot 0.20 \):
\[
500 \cdot 0.20 = 100
\]

Next, multiply this result by \( t \):
\[
100 \cdot 2 = 200
\]

Now, add this to \( p \):
\[
l = 500 + 200 = 700
\]

Thus, the value of \( l \) is \( 700 \).