Question

One grain of this sand approximately weighs 6 x 10^-6g.

Answer 1

Answer:

• 1.2×10¹² grains

Step-by-step explanation:

1 grain = 6×10⁻⁶ g

• 7200 kg =
• 7200000 g =
• 7.2×10⁶ g =
• 7.2×10⁶ ÷ 6×10⁻⁶ =
• (7.2÷6)×10⁶⁻ ⁽⁻⁶⁾ =
• 1.2×10¹² grains