2 years ago

Add Linear Expressions. (4x - 1) + (-5x + 17)

Mathematics

1 answer:

dezoksy [38]2 years ago

6 0

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My quiz had 15 questions, I got a score of 67.8%. how many questions did I get wrong?

Ne4ueva [31]

You take 67.8/100×15
10.17
then take 15-10.17 the answer will be the wrongs u got
=4.83

4 0

3 years ago

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−7x−6y=2<br> 7x+4y=−6<br> solve for x and y

ikadub [295]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}$

Step-by-step explanation:

$\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}$

$\mathrm{Substitute\:}x=-\frac{2+6y}{7}$

$\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}$

$\begin{bmatrix}-2-2y=-6\end{bmatrix}$

$\mathrm{For\:}x=-\frac{2+6y}{7}$

$\mathrm{Substitute\:}y=2$

$x=-\frac{2+6\cdot \:2}{7}\\\\x=-2$

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2 years ago

“Write an equation in slope-intercept form for the line with slope 3/2 and y-intercept -7.”

gregori [183]

Answer:

y = 3/2x - 7

Step-by-step explanation:

slope-intercept: y = mx + b

m = slope (3/2)

b = y-intercept (-7)

when put together, the equation is y = 3/2x - 7.

6 0

2 years ago

Calculate the correct monthly pay for an annual salary of 53,000

Brrunno [24]

Answer:

$4416.6

Step-by-step explanation:

If i understand you question correctly than this is the answer. Hope this helps!! But if not Sorry!!! :):):)

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3 years ago

Solve for x. Enter your answer below as a fraction in lowest terms, using the slash ( / ) as a fraction bar. Solve:

Pachacha [2.7K]

Answer:

x=21/40

Step-by-step explanation:

First get common denominators

3/8 *5 to top and bottom is now 15/40

3/20 *2 to top and bottom is now 6/40

isolate the X

x-15/40=6/40

+15/40 +15/40

x=21/40

7 0

3 years ago

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