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balandron [24]
2 years ago
8

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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The sum of two numbers is 25. One number is twice the second number plus seven. What are the two numbers ?
Hoochie [10]

Answer:

the two numbers are 19 and 6

Step-by-step explanation:

so we know that there are two numbers that added together give us 25

x+x=25


one of the numbers is twice the amount of the second plus 7

(2x+7)+x=25


simplify 2x+7+x

3x+7=25


subtract 7 from both sides

3x=18


divide 3 by both sides

x=6


and there is your answer.

4 0
3 years ago
Solve my question please, I’ll mark u as brainlest if you solved my question!!!
algol13

Answer:

given \: that \: the \: cost \: of \: orchestra \: is \: three \: times \: of \: balcony \: ticket \\  let \: the \:cost \: of \:  balcony \: \: ticket \:  be \:x \\ so \: the \: cost \: of \: orchestra \: ticket \: sold \: be \: 3x \\ the \: total \: income = 3640 \\  \\ so \: the \: equation \: formed \:  = > 148(3x)+ 76(x) = 3640 \\  =  > 444x + 76x = 3640 \\  =  > 520x = 3640 \\  =  > x =  \frac{3640}{520} \\  =  > x = 7

so \: orchestra \: ticket \:  = 444x = 444 \times  = 3108 \\ and \: balcony \: ticket \:  = 76x = 76 \times 7 = 532

FOR PROOF = 3108+532 = 3640 total income

Hope it helps

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viktelen [127]
6 lessons per week multiplied by the number of weeks in a year
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total - 5 missed
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