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A number is doubled, then decreased by 13.7. The result is greater than 125.28. What is the smallest integer that satisfies this condition?

User MasterAM
by
4.0k points

2 Answers

4 votes

Answer:

70

Explanation:

Let x be the desired integer. Then 2x-13.7>125.28. Adding 13.7 to both sides gives 2x>138.98, and dividing both sides by 2 gives x>69.49. The smallest integer that is greater than 69.49 is
$\boxed{70}$.

Hope this helped! :)

User Adam Goodwin
by
4.3k points
6 votes

Answer:

x > 69.49

Explanation:

Step 1: Write out equation

2x - 13.7 > 125.28

Step 2: Add 13.7 to both sides

2x > 138.98

Step 3: Isolate x by dividing both sides by 2

x > 69.49

So x has to be greater than 70 in order to fit into the question context.

User FET
by
3.9k points