Final answer:
Charles would earn a total of $482.50 in one week if he sold $1500 worth of merchandise, which includes his standard weekly salary of $430 and a commission of 3.5% on his sales.
Step-by-step explanation:
The student has asked about the calculation of weekly earnings based on a base salary plus a commission for sales made. To find Charles's total earnings for a week when he sells $1500 worth of merchandise at the electronics store, we need to calculate his commission from the sales plus his standard weekly salary. Charles earns a weekly salary of $430 and a commission of 3.5% on his sales.
To calculate the commission on the $1500 of sales, convert the percentage to a decimal by dividing by 100 (3.5% / 100 = 0.035), and then multiply by the sales amount:
$1500 × 0.035 = $52.50
Therefore, Charles earns $52.50 as a commission from sales. To find his total weekly earnings, add this commission to his weekly salary:
$430 (weekly salary) + $52.50 (commission) = $482.50
Charles would earn $482.50 in one week if he sold $1500 worth of merchandise.