Question

The sum of the length and width of a rectangle is more than 15 units. The length is 3 units more than the width, x. Which model and solution is correct for this situation?

Answer 1

Answer:
`6, 9\ \text{units}`

Explanation:

Given

The Sum of length and width is
`15\ units`

length is 3 units more than the width

width is
`x`

length is
`x+3`

Their sum is 15

`\Rightarrow x+x+3=15\\\Rightarrow 2x=12\\\Rightarrow x=6\ \text{units}`

Length is
`x+3=9\ \text{units}`

Width is
`x=6\ \text{units}`