Question

he amount of money left in Alma’s bank account is expressed by the linear equation y = -27x + 577, where x represents the number of weeks and y represents the amount of money left in her account. After how many weeks will Alma have $145 left in her account?

Answer 1

After 16 weeks she will have 145 dollars left in her account.

Explanation:

since 145 represents the amount of money in her account we will substitute that for "y" and solve for "x"

145=-27x+577

145-577=-27x

-432=-27x

-432/-27= -27x/-27

16=x