Answer:
7 *[tex]10^{4}[/tex]
Explanation:
First, round 67,785 to the nearest ten thousand;
The 6 is in the ten thousands place, since it is greater than 5, it will be rounded up to 7. The number therefore becomes;
=70,000
Next, estimate the 70,000 to a single digit times a power of ten.
Maintain the 7 digit, then find a number that 10 is raised to, to get 10,000;
10^1 =10
10^2 = 100
10^3 = 1000
10^4 = 10,000
Therefore, 7 times 10 ^4 will give you 70,000;
70,000
= 7 *[tex]10^{4}[/tex]
