9. A sugar cube has a volume of about 4.9 ml. What is the total volume in milliliters of 1.5×10^6 sugar cubes?

option 1: 0.735 x 10^7 ml
option 2: 7.35×10^6 ml
option 3: 7.35 x 10^7 ml
option 4: 7.35 x 10^5 ml

1 answer

To find the total volume of 1.5×10^6 sugar cubes, we need to multiply the volume of one sugar cube (4.9 ml) by the number of sugar cubes.

Total volume = Volume of one sugar cube × Number of sugar cubes
Total volume = 4.9 ml × 1.5×10^6

To multiply a number by a power of 10, we add the exponents:
1.5×10^6 = 1.5 × 10^6

Now, we can calculate the total volume:
Total volume = 4.9 ml × 1.5 × 10^6
Total volume = (4.9 × 1.5) ml × 10^6
Total volume = 7.35 ml × 10^6

So, the total volume of 1.5×10^6 sugar cubes is 7.35×10^6 ml.

Therefore, the correct option is 2: 7.35×10^6 ml.