Question

Joey, Keith and Eli have a combined height of 7 meters. If Joey is 2.31 meters tall and Eli is 2.4 meters tall, how tall is Keith?

Answer 1

`2.29m`

Step-by-step explanation

The combined height of the three people is 7 meters. This means that the sum of their heights is 7 meters.

Joey is 2.31 m tall and Eli is 2.4 m tall.

Let Keith's height be k.

Therefore, we have that the sum of their heights is:

`2.31+2.4+k=7`

Solve for k:

`\begin{gathered} 4.71+k=7 \\ k=7-4.71 \\ k=2.29m \end{gathered}`

hence, Keith is 2.29 meters tall.