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Katyanochek1 [597]
2 years ago
6

7x+1=8x+3 Please help I did it but it said my answer was wrong

Mathematics
2 answers:
sweet-ann [11.9K]2 years ago
8 0

I did some math and i got this

x = -2

Artyom0805 [142]2 years ago
7 0

Hello.

In order to solve the equation, we need to isolate x.

First, subtract 1 from both sides:

\mathrm{7x+1-1=8x+3-1}

\mathrm{7x=8x+2}

Now, subtract 8x from both sides:

\mathrm{7x-8x=8x-8x+2}

\mathrm{7x-8x=2}

\mathrm{-x=2}

Now, the minus sign is the same as -1.

In order to isolate x, we need to multiply both sides by -1:

\mathrm{x=-2}

Therefore, the answer is

\mathrm{x=-2}

I hope it helps.

Have a nice day.

\boxed{imperturbability}

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valentina_108 [34]

Answer:

each payment = $214.20

Step-by-step explanation:

For ordinary annuity,

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Here, FVOA = $50,000

year, n = 14

Since the interest will be paid monthly, m = 12

interest rate, r = 4.5% = 0.045

PMT = ?

Putting all the values into the ordinary annuity formula,

FVOA = PMT x [{(1+r/m)^(n*m)} - 1/(r/m)]

$50,000 = PMT x [{(1+0.045/12) ^ (14*12)} - 1/(0.045/12)]

or, $50,000 = PMT x [{(1+0.045/12) ^ (14*12)} - 1/(0.045/12)]

or, $50,000 = PMT x [(1.8754 - 1)/0.00375]

or, $50,000 = PMT x [(1.8754 - 1)/0.00375]

or, $50,000 = PMT x 233.4399

or, PMT = $50,000/233.4399

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or, monthly payment will be $214.20 (Nearest cent)

7 0
3 years ago
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mash [69]

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Determine the range of the function.
Naya [18.7K]

Answer:

Solution: f(x)\ge-5\\Interval:[-5,\infty)

Step-by-step explanation:

Equation: \frac{1}{4} x^2-5 = y

1). \frac{1}{4} x^2-5 = y →\frac{x^2}{4}-5=y

2). \frac{x^2}{4}-5=y ∴ a=\frac{1}{4}, b=0, c=-5

3). x_v=-\frac{b}{2a}

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         =0

4). now plug x_v into y_v

y_v=\frac{0^2}{4}-5

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4 years ago
The solution for x2+2x+8<0
Tema [17]
Answer for this question is the zeros are greater than -4 and 2
7 0
4 years ago
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A container has 3 apple juice boxes, 4 grape juice boxes and 5 orange juice boxes. Alex picks one juice box, drinks it and then
Eduardwww [97]

Hey!

Grape over total: \frac{4}{12}

After he drinks 1, there will be 1 less. That means it will be over 11

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Now multiply the fractions

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That means the probability is: \frac{5}{33}

Good luck and hope this helps! :)

4 0
4 years ago
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