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2 years ago

Oliver and Marie open bank accounts at the same

Mathematics

2 answers:

torisob [31]2 years ago

6 0

9514 1404 393

Answer:

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)

Katena32 [7]2 years ago

3 0

Answer:

A. 10 weeks

Step-by-step explanation:

Oliver Marie

Starting 300 200

week 1 310 220

week 2 320 240

week 3 330 260

week 4 340 280

week 5 350 300

week 6 360 320

week 7 370 340

week 8 380 360

week 9 390 380

week 10 400 400

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