[FONT=.SF UI Text][FONT=.SFUIText]Every time you buy a card the price goes up 20 units. The first card costs 60 units. How would you write an equation to find the TOTAL cost for X cards bought?[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]1st card costs 60[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]2nd costs 80[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]3rd costs 100[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]So the total cost for 3 cards is 240.[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]I dont know how to turn it into an equation though. If I wanted to go to 60 cards it would take forever.[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]1st card costs 60[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]2nd costs 80[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]3rd costs 100[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]So the total cost for 3 cards is 240.[/FONT][/FONT]
[FONT=.SF UI Text][FONT=.SFUIText]I dont know how to turn it into an equation though. If I wanted to go to 60 cards it would take forever.[/FONT][/FONT]
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