This inequality can be used when buying something to determine if the purchase is within a certain budget or spending limit.
In this particular case, the inequality is 50x + 15 < 400, where "x" represents the quantity of items being purchased.
To use this inequality, you would substitute "x" with the quantity of items being considered for purchase and solve for "x" to determine the maximum number of items that can be bought without exceeding the budget.
For example, let's say you want to buy a certain item that costs $50 per unit. You can use this inequality to find out how many units you can afford to buy without exceeding a budget of $400.
Substituting the given values into the inequality, we get 50x + 15 < 400.
Simplifying this inequality, we have 50x < 385.
Dividing both sides of the inequality by 50, we find x < 7.7.
Therefore, based on this inequality, you can afford to buy a maximum of 7 units of the item without exceeding the budget of $400.
50x+15<400 how can this be used when buying something
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