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3 years ago

PLEASE HELP ME !!!! WILL GIVE BRAINLIEST TO WHOEVER ANSWERS CORRECTLY

Mathematics

1 answer:

Margarita [4]3 years ago

3 0

Answer:

(8x + 1)° + ( 4x+11)° = 180° (linear pair )

8x +1 + 4x +11 = 180

8x + 4x + 1 + 11 = 180

12x + 12 = 180

12x = 180 - 12

12x = 168

x= 168/12

x = 14

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3 years ago

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Please help me with all of them or at least 2 of them? Thank you so much.

LUCKY_DIMON [66]

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3 years ago

Seth earns 152 in 4 days. At that rate how many days will it take him to earn 532

djverab [1.8K]

Please use $ signs when discussing US currency.

<span>$152 in 4 days. At that rate how many days will it take him to earn $532

One way to solve this is to set up and solve an equation of ratios:

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3 years ago

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Sue Brown is a salesperson at a car dealership. She earned a gross pay of $8000 for the month of June. Her state tax rate is 3.5

Lera25 [3.4K]

Sue Brown owe $280.00 in state taxes for the month. Option B is correct.

Step-by-step explanation:

Gross pay for June= $8000

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We need to find how much will Sue Brown owe in state taxes for the month.

We need to find 3.5% of 8000

Solving:

$3.5\% \,\,of\,\,800\\=\frac{3.5}{100}*8000\\=280$

So, Sue Brown owe $280.00 in state taxes for the month.

Option B is correct.

Keywords: Income Tax amount

Learn more about finding income tax amount at:

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3 years ago

Which of the following combined with the equation −9x + 3y = 12 creates a system of linear equations with no solution?

PolarNik [594]

ANSWER

The correct answer is option A

EXPLANATION

A line that will create a system of equation with no solution when combined with
$- 9x + 3y = 12$
,is the line that has the same slope as
$- 9x + 3y = 12$
but different y-intercept.

So, let us write the given equation in slope intercept form to obtain,

$3y = 9x + 12$

$\Rightarrow \: y = 3x + 4$

The slope is
$3$
and y-intercept is
$4.$

Now let us determine the slope and intercept for the given options too.

For option A,

$18x - 6y = 20$

$\Rightarrow \: - 6y = - 18x + 20$

$\Rightarrow \: y = 3x - \frac{10}{3}$

This has the same slope as the given equation but different y-intercept. When combined with the given equation, there will be no solution, since the two lines will never intersect. so it is the correct option.

For option B,

$3x - y = - 4$

$\Rightarrow \: -y = - 3x - 4$

$\Rightarrow \: y = 3x + 4$

This option has the same slope and y-intercept as the given line so when combined with this equation, there will be infinitely many solution.

As for option C and D they do not have the same slope as the given line so there will be a unique solution when each is combined with the given line.

8 0

3 years ago