Mark runs a stall selling handmade cards and bookmarks.
Each handmade card costs $20.00
Each bookmark costs $2.50
Mark wants his total sales to reach a minimum of $90.00 through the sale of at least one handmade card and several bookmarks. What inequality represents the various quantities of bookmarks (x) Mark must sell?
The total cost of the handmade cards is $20.00 times the number of handmade cards sold. The total cost of the bookmarks is $2.50 times the number of bookmarks sold.
The total sales is the sum of the cost of the handmade cards and the cost of the bookmarks.
The inequality representing the various quantities of bookmarks Mark must sell is:
20x + 2.50x ≥ 90