Question

One-half of the sum of a number and 12 is less than 27.  What is the number?  Write as an inequality.  ​

Answer 1

Answer:

Call the number we need to find a.

Inequality: (12 + a) ÷ 2 < 27

<=> 12 + a < 54

<=> a < 54 - 12

<=> a < 42