David found a new part-time job that pays $2400/month. This is 5 times what he made at his previous job. What was David’s yearly salary at his old job?(1 point)

Question

Responses

$480 a year
$480 a year

$144,000 a year
$144,000 a year

$28,800 a year
$28,800 a year

$5760 a year

Answer 1

To determine David's yearly salary at his old job, we can analyze the information given.

David's new job pays him $2400 per month, and this salary is 5 times what he made at his previous job. To find his old monthly salary, we divide his new salary by 5:

\[ \text{Old monthly salary} = \frac{2400}{5} = 480 \]

Now, to find the yearly salary at his old job, we multiply the old monthly salary by 12 (the number of months in a year):

\[ \text{Old yearly salary} = 480 \times 12 = 5760 \]

Thus, David's yearly salary at his old job was $5760 a year.