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.(1 point)
To round the number 7,803,100 to the nearest place value, we look at the digit in the thousands place, which is 0. Since 0 is less than 5, we round down. Therefore, the rounded number is 7,800,000.
Expressing 7,800,000 in the form of a single digit times an integer power of 10, we can write it as:
7.8 × 10^6
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 need to round it to the nearest place value.
Since 7,803,100 has seven digits, the nearest place value would be the millions place.
To round to the nearest place value, we look at the digit to the right of the millions place, which is 1. Since 1 is less than 5, we round down.
Therefore, rounding 7,803,100 to the nearest million gives us 8,000,000.
In the form of a single digit times an integer power of 10, this can be written as 8 x 10^6.
To express a number in the form of a single digit times an integer power of 10, we need to determine the appropriate power of 10.
The provided number is 7,803,100. To determine the power of 10, we count the number of digits to the left of the decimal point (if any). In this case, there are seven digits. The power of 10 will be 10 raised to the power of six since we have seven digits.
Now, we need to round 7,803,100 to the nearest place value. The place value of the nearest whole number is the millions place because it is the leftmost digit.
To determine the rounded number, we look at the digit in the place value immediately to the right of the millions place, which is the hundred thousands place. If that digit is 5 or greater, we round up. If it is less than 5, we round down.
In this case, the digit in the hundred thousands place is 0, which is less than 5. Therefore, we do not need to round up.
To express the rounded number in the form of a single digit times an integer power of 10, we divide the number by 10 raised to the power of six (since we have seven digits). This gives us:
7,803,100 ÷ 10^6 = 7.8031
Now, we can express this number as a single digit times 10 raised to the power of 6:
7.8031 = 7 × 10^6
So, the number 7,803,100, rounded to the nearest place value and expressed in the form of a single digit times an integer power of 10, is 7 × 10^6.