Question

The amount of money that is left in a medical savings account is expressed by the equation y=-24x+379, where x represents the number of weeks and y represents the amount of money, in dollars, that is left in the account. After how many weeks will the account have $67 left in it?

Answer 1

You plug in $67 for y because you need to find out what week you'll have $67 dollars in the account.

Answer 2

The number of weeks required to have $67 left in the account is 13 weeks

Given the Parameters :

• Linear equation : y = - 24x + 379

• y = amount left in account

• x = Number of weeks

To obtain the number of weeks to have $67 left in the account, we substitute y = 67 into the equation and solve for x :

y = - 24x + 379

67 = - 24x + 379

Collect like terms

24x = 379 - 67

24x = 312

x = 312 / 24

x = 13

Therefore, the Number of weeks required is 13 weeks

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