All categories

3 years ago

Steps in solving this equation plz

Mathematics

1 answer:

Leni [432]3 years ago

5 0

Answer:

Equation:

Step-by-step explanation:

3y = x + 15

y + 3x = 4

To get the y-value Subtract 3x from both sides.

y = -3x + 4

Then substitute;

3(-3x + 4) = x + 15

Distribute: -9x + 12 = x + 15

Subtract x from both sides

-10x + 12 = 15

Subtract 12 from both sides

-10x = 3

Divide both sides by -10

x = 3/-10

Then to get the value of y;

y = -3(3/-10) + 4

You might be interested in

The sales tax rate is 9 1/2%. Estimate the tax on a $9.98 purchase. How did you arrive at your answer?

stepladder [879]

$9.98 * 1.095 = (that is tax; for ex. if it was 23.6 percent tax it would be 1.236)

<u><em>$10.93</em></u>

6 0

2 years ago

I'm sorry but these are the multiple choice answers.

Sunny_sXe [5.5K]

$\bf \qquad \qquad \textit{Future Value of an ordinary annuity}
\\\\
A=pymnt\left[ \cfrac{\left( 1+\frac{r}{n} \right)^{nt}-1}{\frac{r}{n}} \right]$

$\bf \qquad 
\begin{cases}
A=
\begin{array}{llll}
\textit{original amount}\\
\textit{already compounded}
\end{array}&
\begin{array}{llll}

\end{array}\\
pymnt=\textit{periodic payments}\to &200\\
r=rate\to 7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, four quarters}
\end{array}\to &4\\

t=years\to &12
\end{cases}
\\\\\\
A=200\left[ \cfrac{\left( 1+\frac{0.07}{4} \right)^{4\cdot 12}-1}{\frac{0.07}{4}} \right]$

7 0

2 years ago

Which sign makes this number sentence true?

I am Lyosha [343]

Answer:

C. =

Step-by-step explanation:

whenever you have | | It will always be positive so -6 turns to 6 and that makes it equal.

4 0

2 years ago

Use the factor theorem to determine whether the first polynomial is a factor of the second polynomial

Diano4ka-milaya [45]

Answer:

not a factor

Step-by-step explanation:

If (x - 3) is a factor then f(3) = 0

f(x) = 2x² - 4x + 30

f(3) = 2(3)² - 4(3) + 30 = 18 - 12 + 30 = 36 ≠ 0

Since f(3) ≠ 0 then (x - 3) is not a factor of f(x)

3 0

3 years ago

Choose the correct answer to 7,215 divided by 34 with a remainder

Vsevolod [243]

7,215: 34 = 0,212205882352941

7 0

2 years ago

Steps in solving this equation plz​

Steps in solving this equation plz