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Two villages have populations $8 \times 1 0^{3}$ and $9 \times 1 0^{3}$ .
The combined population is needed in correct standard form.
What is it?

Class 7Standard FormNumber System

A $1.7 \times 1 0^{4}$
B $17 \times 1 0^{3}$
C $1.7 \times 1 0^{3}$
D $1.7 \times 1 0^{6}$

Step-by-Step Solution

8 \times 1 0^{3} + 9 \times 1 0^{3} = 17 \times 1 0^{3} = 17000 = 1.7 \times 1 0^{4}

(since 17 is not less than 10, rewrite as

1.7 \times 10

).

Answer: A)

1.7 \times 1 0^{4}

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