Mark runs a stall selling handmade cards bookmarks.
• Each handmade card cost $20.00.
• Each bookmark cost $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?
Let X represent the quantity of bookmarks that Mark must sell.
Since each handmade card costs $20.00 and each bookmark costs $2.50, the total amount Mark earns from selling a handmade card and X bookmarks is given by:
20 + 2.5X >= 90
This inequality represents the various quantities of bookmarks (X) Mark must sell to reach a minimum of $90.00 in total sales.