Question

some sources say an average american will eat over 6×10⁴ pounds of food in his or her lifetime. that means that a family of 5 will eat over 3×10⁵ pounds of food in all. that’s equal to the weight of more than 30 elephants. write 3×10⁵ in standard notation. 3×10⁵ = ?

Explanation:

Step1: Recall the meaning of exponent

The exponent 5 in $10^{5}$ means 10 is multiplied by itself 5 times, i.e., $10^{5}=10\times10\times10\times10\times10 = 100000$.

Step2: Multiply by coefficient

Multiply 3 by $10^{5}$ (which is 100000), so $3\times10^{5}=3\times100000 = 300000$.

Answer:

300000