The sum of a number and 19 is at least 8.2. What is the number?

2 Answers
Jan 24, 2016

10.8

Explanation:

Let the number be x

Then x+19=8.2

x=8.219

x=10.8

Feb 2, 2017

The term "at least" means that the number can be a range of values.

Explanation:

Define

Let x be the number.

Write the equation

x+198.2

Subtract 19 from both sides of the inequality

x8.219

Simplify

x10.8

So x can be any number greater or equal to 10.8