Question

evaluate the expression.
(6.4 × 10⁵) ÷ (4 × 10³)
? × 10

Explanation:

Step1: Split into two separate divisions

$\frac{6.4}{4} \times \frac{10^5}{10^3}$

Step2: Calculate the coefficient division

$6.4 \div 4 = 1.6$

Step3: Calculate the power of 10 division

$\frac{10^5}{10^3} = 10^{5-3} = 10^2$

Step4: Combine the two results

$1.6 \times 10^2$

Answer:

$1.6 \times 10^2$