Solve the problem. Express your answer in scientific notation, and round to one decimal place.
-Approximately 7 × 103 employees of a certain company average $30,000 each year in salary. What is the total amount earned by all the employees of this company per year?
A) $\$ 21 \times 10 ^ { 8 }$
B) $\$ 2.1 \times 10 ^ { 8 }$
C) $\$ 21 \times 10 ^ { 9 }$
D) $\$ 2.1 \times 10 ^ { 9 }$

Question

Solve the problem. Express your answer in scientific notation, and round to one decimal place.
-Approximately 7 × 103 employees of a certain company average $30,000 each year in salary. What is the total amount earned by all the employees of this company per year? 
A) $\$ 21 \times 10 ^ { 8 }$
B) $\$ 2.1 \times 10 ^ { 8 }$
C) $\$ 21 \times 10 ^ { 9 }$
D) $\$ 2.1 \times 10 ^ { 9 }$

Quizplus · Accepted Answer

The total amount earned by all employees is found by multiplying the number of employees by the average salary per employee: $7 \times 10^3 \times 30,000 = 7 \times 3 \times 10^4 = 21 \times 10^4 = 2.1 \times 10^8$.

Solve the Problem $21×108\$ 21 \times 10 ^ { 8 }$21×108

Solve the Problem $\$ 21 \times 10 ^ { 8 }$