Martina is 3 inches less than twice as tall as her little brother. Writer an expression for martinas height. How tall is martina if her little brother is 28 inches tall

Question

asked Apr 1, 2021 95.2k views

1 Answer

OOPer · Answer 1 · 2021-04-06T16:30:23+0000

Answer:

Martina's height would be
.

56 inches.

Explanation:

Let x represent Height of Martina's brother.

We have been given that Martina is 3 inches less than twice as tall as her little brother. So Martina's height would be 2 times x.

Martina's height would be
.

Therefore, our required expression would be
.

To find Martina's height when his brother is 28 inches, we will substitute
$x=28\text{ inch}$ in expression for Martina's height as:

$2x\Rightarrow 2(28\text{ inches})=56\text{ inches}$

Therefore, Martina's height is 56 inches.