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Chapter 3: Q.72 (page 113)

$0.10 d + 0.25 (d + 7) = 5.25$

Short Answer

Expert verified

The value of $d = 10$

Step by step solution

01

- The given information

$0.10 d + 0.25 (d + 7) = 5.25$

02

Step 2

$0.10 d + 0.25 (d + 7) = 5.25 \Rightarrow 0.10 d + 0.25 d + 1.75 = 5.25 \Rightarrow 0.35 d = 5.25 - 1.75 \Rightarrow 0.35 d = 3.50 \Rightarrow d = 10$

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