Final Answer:
To find the number that, when multiplied by 2 × 10⁻⁶, equals 6 × 10⁻⁴, you can set up an equation. The number is 3 × 10², which is equivalent to 300. Therefore, 2 × 10⁻⁶ times 300 equals 6 × 10⁻⁴.
Step-by-step explanation:
To find the number that, when multiplied by 2 × 10⁻⁶, equals 6 × 10⁻⁴, you can set up an equation. Let x be the unknown number:
2 × 10⁻⁶ × x = 6 × 10⁻⁴
Now, solve for x. Divide both sides by 2 × 10⁻⁶:
x =

When you divide numbers with the same base, subtract the exponents:
x =

Simplify the fraction:
x = 3 × 10²
Therefore, 3 × 10² is the number you're looking for. The number is 3 × 10², which is equivalent to 300.