Andre has $30, and Erin has $14. Andre is saving $5 per day, and Erin is saving $9 per day. After how many days will Andre and Erin have the same amount of money?

Answer 1

Let's call the number of days it takes for Andre and Erin to have the same amount of money "x".

After x days, Andre will have saved a total of:

$30 + ($5/day * x)

After x days, Erin will have saved a total of:

$14 + ($9/day * x)

We want to find the value of x that makes these two expressions equal:

$30 + ($5/day * x) = $14 + ($9/day * x)

We can start solving for x by subtracting $14 and $5/day from both sides:

$16 = ($4/day * x)

Now we can solve for x by dividing both sides by $4/day:

x = 4 * $16/day
x = 64/4
x = 16

Therefore, it will take 16 days for Andre and Erin to have the same amount of money.