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Chapter 3: Q.70 (page 113)

$0.05 n + 0.10 (n + 7) = 3.55$

Short Answer

Expert verified

The value of $n = 19$

Step by step solution

01

- The given information

$0.05 n + 0.10 (n + 7) = 3.55$

02

Step 2

$0.05 n + 0.10 (n + 7) = 3.55 \Rightarrow 0.05 n + 0.10 n + 0.70 = 3.55 \Rightarrow 0.15 n = 3.55 - 0.70 \Rightarrow 0.15 n = 2.85 \Rightarrow n = 19$

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