A corporation earned a profit of $2.5 × 10^4 for 1 × 10^3 days in a row. What was the corporation’s total profit during this time period? Write the answer in scientific notation.
Responses
A 2.5 X 10 2.5 X 10^-7
B 2.5 X 102.5 X 10^7
C 2.5 X 10 2.5 X 10^6
D 2.5 X 10
To find the corporation's total profit during this time period, we need to multiply the profit per day by the number of days.
The profit per day is $2.5 × 10^4 (given in scientific notation), and the number of days is 1 × 10^3 (also given in scientific notation).
When multiplying numbers in scientific notation, we multiply the coefficients and add the exponents.
So the total profit is (2.5 × 1) × (10^4 × 10^3) = 2.5 × 10^4+3 = 2.5 × 10^7.
Therefore, the answer is B) 2.5 × 10^7.