Question

In 1867, the United States purchased Alaska from Russia. Alaska is about 5.9 × 105 square miles. The United States paid about $12.20 per square mile. Approximately how much did the United States pay Russia for Alaska? Complete the steps to answer the question. 1. Write the expression: (5.9 × 105)(12.2) 2. Multiply the decimal values: × 105 3. Write in scientific notation: × The United States paid Russia approximately for Alaska.

Answer 1

1. Write the expression:  (5.9 × 105)(12.2)

2. Multiply the decimal values:

✔ 71.98

× 105

3. Write in scientific notation:

✔ 7.198

×

✔ 10 to the sixth power

The United States paid Russia approximately

✔ $7,200,000

for Alaska.

Explanation: