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Chapter 2: Q 2.26 (page 110)

Solve0.1d+0.05d-5=2.15

Short Answer

Expert verified

The answer isd=16

Step by step solution

01

Step 1. Given Information

The equation is 0.1d+0.05d-5=2.15

Find the value of d and check.

02

Step 2. Calculation

Simplify the equation 0.1d+0.05d-5=2.15

0.1d+0.05d-0.25=2.15

Combine like terms,

0.15d=2.4

Multiply by 100

15d=240

Isolate d

d=16

03

Step 3. Check

Substitute d=16in 0.1d+0.05d-5=2.15

0.116+0.0516-5=2.151.6+0.0511=2.151.6+0.55=2.152.15=2.15

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