Question

Can someone please help me

Answer 1

never

Explanation:

smith will run out by week 2

Answer 2

After 17 weeks

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!