Question

Four more than half a number is at least nine. What is the number?

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The number is at least 10.

x ≥ 10

Step-by-step explanation:

Let the number be x.

Four more than half the number

⇒ x/2 + 4

The number is at least 9

x/2 + 4 ≥ 9

Take away 4 from both sides

x/2 ≥ 9 - 4

x/2 ≥ 5

Multiply the equation by 2

x/2 ≥ 5

x ≥ 10

Answer: The number is at least 10.