a total of 7,803,100 tourists visited a country 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 number in the form of a single digit times the integer power of 10.
To round the number of tourists to the nearest place value, we need to determine the place value of the digit to the right of the desired place value. In this case, we are rounding to the nearest whole number.
The digit to the right of the whole number place value is in the tenth of millions place (1,000,000). In the given number, this digit is 1.
Since the digit 1 is less than 5, we round down the whole number. Therefore, the rounded value of 7,803,100 to the nearest whole number is 7,800,000.
To express this number in the form of a single digit times an integer power of 10, we divide 7,800,000 by 10,000,000 to find that it is equal to 0.78 as a decimal.
Converting this decimal to scientific notation, we have:
0.78 × 10^7
Therefore, the number of tourists can be expressed as a single digit times an integer power of 10 by rounding to the nearest whole number as 0.78 × 10^7.