Question

24. If each zoo is each visited by 2 x 10³ people per day and there are approximately 3 x

10² zoos in Australia, how many total people visited an Australian Zoo in 1 day? State your
answer in scientific notation.
A. 5 x 105
B. 5 x 106
C. 6 x 105
D. 6 x 106

Answer 1

`{ \qquad\qquad\huge\underline{{\sf Answer}}}`

Number of people who visit each and every zoo in a day :

• 2 × 10³

Number of zoos in Australia :

• 3 × 10²

Total number of times the people visited :

`\qquad \sf  \dashrightarrow \:(2 * 10 {}^(3) ) * (3 * 10 {}^(2) )`

`\qquad \sf  \dashrightarrow \:(2 * 3) * (10 {}^(2) * 10 {}^(3) )`

`\qquad \sf  \dashrightarrow \:6 * 10 {}^(3 + 2)`

`\qquad \sf  \dashrightarrow \:6 * 10 {}^(5) \: \: \: \: visits \: \: a \: \: day`