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kati45 [8]
3 years ago
11

Rochelle made three $25 withdrawals and then wrote a check for $100. If she started with $200 in her account, find the total amo

unt she has left in her account in dollars.
Mathematics
1 answer:
antoniya [11.8K]3 years ago
4 0

$25. 25 x 3 is 75. Plus the 100 is 175. 200 - 175 is $25

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Solve each system by substitution<br><br> 2x - 3y = -1<br> X + 4y = -6
lord [1]

Answer:

(- 2, - 1 )

Step-by-step explanation:

Given the 2 equations

2x - 3y = - 1 → (1)

x + 4y = - 6 → (2)

Rearrange (2) expressing x in terms of y by subtracting 4y from both sides

x = - 6 - 4y → (3)

Substitute x = - 6 - 4y into (1)

2(- 6 - 4y) - 3y = - 1 ← distribute and simplify left side

- 12 - 8y - 3y = - 1

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Substitute y = - 1 into (3) for corresponding value of x

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3 0
3 years ago
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weqwewe [10]

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<u>Step-by-step explanation:</u>

Note: The question would have made more sense if if it was 2/x = x - 1 but I will answer it as written.

\dfrac{1}{x}=x-1\qquad \text{Restriction: }x\neq 0\\\\\\\text{Cross multiply, simplify, and set equal to zero:}\\1=x(x-1)\\\\1=x^2-x\\\\0=x^2-x-1\\\\\\\text{This is not factorable so you will need to use Quadratic Formula:}\\\\x=\dfrac{-(-1)\pm \sqrt{(-1)^2-4(1)(-1)}}{2(1)}\\\\\\x=\dfrac{1\pm \sqrt5}{2}

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3 years ago
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Answer:

hello :

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Ber [7]

Answer:

infinite

Step-by-step explanation:

5 0
2 years ago
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