A total of 7,803,100 tourists visited Country A from the year 2018 to the year 2020. Round to the nearest place value, then express this number in the form of a single digit times an integer power of 10. what is the answer
To express the number in the form of a single digit times an integer power of 10, we need to round it first.
Rounding 7,803,100 to the nearest place value, we get 7,800,000.
Now, we need to express this number in the form of a single digit times an integer power of 10.
7,800,000 is equal to 7.8 × 10^6.
Therefore, the answer is 7.8 × 10^6.
To round 7,803,100 to the nearest place value, we look at the digit in the ten-thousands place, which is 0. The digit to the right of 0 is 0 as well, so we drop the remaining digits after the ten-thousands place. Therefore, rounding 7,803,100 to the nearest place value gives us 7,800,000.
To express this number in the form of a single digit times an integer power of 10, we can move the decimal point to the left until we have a single digit to the left of the decimal point. In this case, we need to move the decimal point five places to the left. Thus, we can express 7,800,000 as 7.8 × 10^6.
Therefore, the answer is 7.8 × 10^6.
To express the number 7,803,100 in the form of a single digit times an integer power of 10, we can start by rounding the number to the nearest place value. In this case, we need to round 7,803,100 to the nearest whole number.
Since the digit in the ten thousands place is 0, we look at the digit to the right of it, which is 3. Since 3 is less than 5, we round down the digit in the ten thousands place to 0. Therefore, 7,803,100 rounded to the nearest whole number is 7,800,000.
Next, we express this rounded number in scientific notation. We move the decimal point to the left until there is only one non-zero digit to the left of it. In this case, we move the decimal point 6 places to the left, resulting in 7.8.
To compensate for moving the decimal point, we multiply the digit (7.8) by 10 raised to the power of 6. Since the decimal point was moved 6 places to the left, our exponent will be 6. Therefore, 7,800,000 can be expressed as 7.8 × 10^6.
So, the answer is 7.8 × 10^6.