Question

Lin read for x minutes, and Elena read for more than that. Write an expression for the number of minutes Elena read. Only use decimals in your expression

Answer 1

Explanation:

In this exercise, we know some facts:

• Lin read for x minutes.
• Elena read for more than that.

The problem tells us nothing about the number of minutes Elena read more than Lin. However, let's say Elena read one-third more than the number of minutes Lin read. Therefore:

For Lin:

$Number \ of \ minutes \ Lin \ read=x$

For Elena:

$Number \ of \ minutes \ Elena \ read=x+\frac{1}{3}x \\ \\ Number \ of \ minutes \ Elena \ read=\frac{3x+x}{3} \\ \\ Number \ of \ minutes \ Elena \ read=\frac{4x}{3} \\ \\ Number \ of \ minutes \ Elena \ read=\frac{4x}{3} \\ \\ \\ By \ using \ decimals: \\ \\ Number \ of \ minutes \ Elena \ read \approx 1.33x$