Add 7.3×107+1.8×107 . Which is the correct sum?(1 point)
Responses
9.1+107
9.1 plus 10 superscript 7 baseline
9.1×107
9.1 times 10 superscript 7 baseline
9.1×1014
9.1 times 10 superscript 14 baseline
8.1×107
The correct sum is 9.1×107.
To add 7.3×10^7 and 1.8×10^7, you add the numbers in front of the exponential terms:
7.3 + 1.8 = 9.1
Therefore, the correct sum is:
9.1×10^7
To add 7.3×10^7 and 1.8×10^7, you can follow these steps:
Step 1: Ensure that the exponents (powers of 10) are the same. In this case, both numbers have the same exponent of 7.
Step 2: Add the coefficients (the numbers in front of the powers of 10). 7.3 plus 1.8 is equal to 9.1.
Step 3: Write the sum as 9.1×10^7.
Therefore, the correct sum is 9.1×10^7.