Question

Rachel has $100 in her savings account and deposits an additional $25 per week. Joanna has $350 in her account and is saving $5 per week. After how many weeks will the two girls have the same amount of money?

10
11
12
13

Answer 1

i believe 12 is the answer for the weeks

Answer 2

100+25x = 350 +5x

subtract 5x from each side

100+20x =350

subtract 100 from each side

20x=250

divide both sides by 20

x = 250 /20 = 12.5

so after 12 weeks they would have the same