Question

In australia, the people use approximately 2,240,000,000 pounds of bread in a year. write this number in scientific notation.

a) 2.24 × 10^9 pounds
b) 2.24 × 10^8 pounds
c) 2.24 × 10^10 pounds
d) 2.24 × 10^7 pounds

Answer 1

The number 2,240,000,000 pounds is correctly written in scientific notation as 2.24 × 10^9 pounds.

Step-by-step explanation:

The number of pounds of bread used in Australia in a year is 2,240,000,000 pounds. To write this number in scientific notation, we need to express it as a product of a number between 1 and 10 and a power of 10. In this case, 2,240,000,000 is written as 2.24 × 109 pounds. We moved the decimal nine places to the left to get from 2,240,000,000 to 2.24, which is why we use 10 to the power of 9.