Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.
-If the distance from the earth to the sun were $82,000,000$ miles. How long would it take a rocket, traveling at $3.8$ $\times 10 ^ { 3 }$ miles per hour, to reach the sun? (Round to three places)
A) $2.158 \mathrm { hr }$
B) $2.158 \times 10 ^ { 4 } \mathrm { hr }$
C) $2.158 \times 10 ^ { 3 } \mathrm { hr }$
D) $2.158 \times 10 ^ { 2 } \mathrm { hr }$

Question

Quizplus · Accepted Answer

To find the time it takes for the rocket to reach the sun, divide the distance by the speed: $82,000,000 \, \text{miles} \div 3.8 \times 10^3 \, \text{miles/hour}$. This equals $21,578.947 \, \text{hours}$, which in scientific notation to three places is $2.158 \times 10^4 \, \text{hours}$.

Solve the Problem 82,000,00082,000,00082,000,000 Miles How Long Would It Take a Rocket, Traveling At Two

Solve the Problem $82,000,000$ Miles How Long Would It Take a Rocket, Traveling At Two