Question

Maria collected r rocks. Javier collected twice as many rocks as Maria and Pablo collected 5 less than Javier. What equation is equivalent to number or rocks collected

Answer 1

`5(r-1)`

Explanation:

Given:

Maria collected r rocks.

Javier collected twice as many rocks as Maria.

Pablo collected 5 less than Javier.

Question asked:

What equation is equivalent to number or rocks collected ?

Solution:

Maria collected number of rocks =
`r`

Javier collected number of rocks =
`2r`

Pablo collected number of rocks =
`2r-5`

The equation is equivalent to number or rocks collected will be:-

`=r+2r+2r-5\\ \\= 5r-5\\ \\ Taking\ 5\ as\ common\\ \\ =5(r-1)`

Thus, the equation will be
`5(r-1)`