Question

Approximately 6.5 x 105 gallons of water flow over a waterfall each second. There are 7.6 x 104 seconds in 1 day.

Enter the approximate number of gallons of water that flow over the waterfall in 1 day.
Can someone please help me

Answer 1

• 4.9×10¹⁰ gallons

Explanation:

Assume 105 is 10⁵ and 104 is 10⁴

• Water flow in a second = 6.5×10⁵
• Seconds in 1 day = 7.6×10⁴

Water flow in 1 day is the product of the two numbers above:

• 6.5×10⁵ × 7.6×10⁴ =
• (6.5×7.6) × 10⁵⁺⁴ =
• 49.4×10⁹ =
• 4.9×10¹⁰ gallons