To solve the inequality \( 10 + 2.5x > 30 \), follow these steps:
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Subtract 10 from both sides: \[ 2.5x > 30 - 10 \] \[ 2.5x > 20 \]
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Divide both sides by 2.5: \[ x > \frac{20}{2.5} \] \[ x > 8 \]
So the solution to the inequality is: \[ x > 8 \]