Solve for r
r\leq \frac{624}{25}
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r\leq 7.8\times 3.2
Multiply both sides by 3.2. Since 3.2 is positive, the inequality direction remains the same.
r\leq 24.96
Multiply 7.8 and 3.2 to get 24.96.
Examples
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Matrix
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Simultaneous equation
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Limits
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