Question

Hannah wants to buy a $460 camera. She can save $50 each week from her paycheck.
However, before Hannah can buy the camera, she must give her brother $90 that she owes him. For how many weeks will Hannah need to save before she can pay back her brother and buy the
camera?

a.12 weeks
b.15 weeks
c.11 weeks
d.10 weeks

Answer 1

Add 460 to 50 and you get a total of 510 dollars that she needs to make. Since she gets 50 every week, divide 510 by 50 to get 10.2. You cant have a part of a week so it will take her 11 weeks. C

Answer 2

We just try all of the answers diwn below
a)$50*12=$600
$600-90=510
b)$50*15=$750
$750-90=$660
c)$50*11=$550
$550-90=$460
d)$50*10=$500
$500-90=410
And to know the answer we look to the nearest number ir if we have te excact same number which we do which is answer c)11 weeks