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Arithmetic
Question

4) Hiroaki uses the expression \( a + 0.05 a \) to...

4) Hiroaki uses the expression \( a + 0.05 a \) to represent an amount increasing by \( 5 \% \) . Allen uses the expression \( 1.05 a \) . Explain why both Hiroaki's and Allen's expression are correct. 

Answer

a+0.05a=1.05a=105\(\% \)a

Solution
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