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klasskru [66]
4 years ago
10

Heather opens a bank account with $125. Each week, starting the following week, she deposits $25 into her account.

Mathematics
2 answers:
Rufina [12.5K]4 years ago
7 0
Total money in account=125+25n
ICE Princess25 [194]4 years ago
4 0

Answer:

125+25n

Step-by-step explanation:

We are given that

Heather opens a bank account with=$125

Each week she deposited money  into her account=$25

We have to find the explicit rule  for amount of money which has Heather after n weeks.

Heather has money after 1 week=125+25=$150

Heather has money after 2 week=125+2(25)=$175

Heather has money after 3 weeks=125+3(25)=$200

:

:

:

Heather has money after n weeks=125+25(n)

Hence, the explicit rule for amount of money which has Heather after n weeks is given by

125+25n

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Luda [366]

Answer:

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Step-by-step explanation:

<u>We know that:</u>

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<u>Solution:</u>

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7 0
3 years ago
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mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

\left \{ {{3x-5y=19} \atop {x+y=1}} \right.

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1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

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Then:

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3 years ago
Solve the systems by the addition method 2x + y = - 1x - 2y = - 4
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Answer:

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y =7/5

Step-by-step explanation:

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Multiply the first equation by 2 so we can eliminate y

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Add this to the second equation

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Multiply the second equation by -2 so we can eliminate x

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Divide by 5

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6 0
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