Question

Translate the sentence into an inequality.Twice the difference of a number and 5 is less than 21.Use the variable w for the unknown number.

Answer 1

Question: Translate the sentence into an inequality.

Twice the difference of a number and 5 is less than 21.

Solution.

The difference between a number and 5 is given by:

w-5

now twice this difference would be:

2(w-5)

and this is less than 21, that is:

$2(w-5)<21$

then, the correct solution is:

$2(w-5)<21$