Question

The 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? 12 weeks 16 weeks 22 weeks 26 weeks

Answer 1

Given:

The linear equation is

$y=-27x+577$

where x represents the number of weeks and y represents the amount of money left in Alma's account.

To find:

The number of weeks in which Alma have $145 left in her account.

Solution:

We have,

$y=-27x+577$

Substitute y=145, we get

$145=-27x+577$

Subtract both sides by 577.

$145-577=-27x$

$-432=-27x$

Divide both sides by -27.

$\dfrac{-432}{-27}=\dfrac{-27x}{-27}$

$16=x$

So, the number of required weeks is 16. Therefore, the correct option is B.

Answer 2

Answer:

B

Step-by-step explanation:

Right on edge 2020