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.
Question
Answer
a+0.05a=1.05a=105\(\% \)a
Related Questions
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The orbital radius of the newly discovered Sarkiston planet around the Sun is \(447\) billion metres. The planet travels (sweeps) an angle of \(112.5\) degrees in a certain period of time. How many millions of kilometres does the planet travel in its orbit?
\( 51.34\)
\(149 \)
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B. \( 3.51 \)
C. \( 1.10 .5 \)
D. \( 42.1\)
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