Question

Hannah wants to buy a $570 camera. She can save
$50 each week from her paycheck. However,
before Hannah can buy the camera, she must give
her brother $80 that she owes him. For how many
weeks will Hannah need to save before she can pay
back her brother and buy the camera?

Answer 1

For this case we have that the total of the camera is $570. If she can get $50 every week we have the following division:

$\frac {570} {50} = 11.4$

We round up (To complete the week)

If Ana didn't owe her brother, she could pay for the camera in 12 weeks.

Now, with the debt we have:

$570 + 80 = 650\\\frac {650} {50} = 13$

Thus, Ana must wait 13 weeks to pay off her debt and get the camera.

Answer:

13 weeks