The weight of an adult blue whale is 9 × 104 kilograms; the weight of an elephant is 3 × 103 kilograms. How many times heavier is the whale than the elephant? (5 points)
30
300
3,000
30,000
To find how many times heavier the whale is than the elephant, we need to divide the weight of the whale by the weight of the elephant.
(9 × 10^4 kilograms) / (3 × 10^3 kilograms)
This can be simplified by dividing both numbers by 3:
(3 × (3 × 10^4 kilograms)) / (3 × 10^3 kilograms)
Now we can simplify the expression:
(3 × 10^4 kilograms) / (10^3 kilograms)
Dividing 10^4 by 10^3 gives us 10, so the expression simplifies to:
3 × 10
Which is equal to:
30
Therefore, the whale is 30 times heavier than the elephant. The answer is 30.