Chapter 9, Problem 1A

To determine

The decimal values of distance A.

Answer to Problem 1A

A $=$ $0.07$ unit.

Explanation of Solution

Given information:

A scale is given as below.

Calculation:

We have been given a scale as below.

From above scale we observe that length of scale is $1$ unit.

Distance A is equal to $7$ parts out of $10$ parts of one-tenth of scale.

i.e. Distance A $=\frac{7}{10}\times \frac{1}{10}\times \text{length of scale}=\frac{7}{100}\times 1=0.07$ unit.

Hence, A $=$ $0.07$ unit.