Oliver and Marie open bank accounts at the same time. Oliver deposits $300 initially and adds $10
per week. Marie deposits $200 initially and adds
$20 per week. After how many weeks of making
additional deposits will Oliver and Marie have the
same amount of money in the account?
A. 10 weeks
C. 40 weeks
B. 2 weeks
D. 30 weeks

A. 10 weeks

Step-by-step explanation:

Oliver  Marie

Starting300  200

week 1310  220

week 2320  240

week 3330  260

week 4340  280

week 5350  300

week 6360  320

week 7370  340

week 8380  360

week 9390  380

week 10400  400

9514 1404 393

  A. 10 weeks

Step-by-step explanation:

Marie's balance is initially $100 less, but she deposits $10 more per week than Oliver does. It will take her 100/10 = 10 weeks to catch up to Oliver's balance.

Oliver and Marie will have the same balance after 10 weeks.

__

Oliver's balance at that time will be 300 +10×10 = 400.

Marie's balance at that time will be 200 +10×20 = 400. (the same)

step-by-step explanation:

honesty mood

step-by-step explanation: