Joshua wants to buy a flat-screen tv that costs $625. he saves $62.50 each week to buy the tv. in how many weeks will he have enough money to make his purchase? 891011

62.50 per week would be represented as 62.50x, where x is the number of weeks, our unknown.  He wants to save 625, so our equation to figure out the number of weeks it would take is 62.50x = 625.  Divide 625 by 62.50 to get that the number of weeks is 10