Question

Can someone please help me

Answer 1

Answer:

never

Step-by-step explanation:

smith will run out by week 2

Answer 2

Answer:

After 17 weeks

Step-by-step explanation:

We can create a system of equations for this problem, where y is the total amount of money in their banks and x is the amount of weeks passed.

Mr. Smith's equation will be $y = 12x+21$.

Mr. Brown's equation will be $y = 10x+55$.

We can now solve for x by using substitution.

Let's substitute Mr. Brown's equation into Mr. Smith's equation.

This get us $10x + 55 = 12x + 21$.

We can now solve for x.

Let's subtract 12x from both sides:

$-2x + 55 = 21$

And now let's subtract 21 from both sides:

$-2x+34=0$

Now we subtract 34 from both sides:

$-2x=-34$

And divide both sides by -2.

$x=17$

Hope this helped!