Question

The amazon river, in south america, is 4,000 miles long. the snake river, in the northwestern united states, is 1,038 miles long. how much longer is the amazon river than the snake river?

Answer 1

The amazon river is 2962 miles longer than the snake river.

Explanation

Suppose, the amazon river is $x$ miles longer than the snake river.

As, the snake river in the northwestern united states is 1038 miles long, so the length of the amazon river in term of $x$ will be:  $(1038+x)$ miles.

Given that, the amazon river in south america is 4000 miles long. So, the equation will be ......

$1038+x=4000\\ \\ x=4000-1038\\ \\ x=2962$

Thus, the amazon river is 2962 miles longer than the snake river.