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3 years ago

Which expression is equivalent to 3(2x−4)+4x−2

Mathematics

2 answers:

Readme [11.4K]3 years ago

5 0

I hope this helps you

3.2x-3.4+4x-2

6x-12+4x-2

10x-14

Oksana_A [137]3 years ago

5 0

Simple...

you have: 3(2x-4)+4x-2

simplify-->>>

3(2x-4)+4x-2

Get rid of the parentheses....(distribute the 3)

3*2x=6x

and

3*-4=-12

6x-12+4x-2

Now add your apples and oranges--->>>

10x-14

Thus, your answer.

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Homework: 5.1 Systems of Linear Equations

Klio2033 [76]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=8,\:y=5$

Step-by-step explanation:

Given the system of linear equations

$7x-y=51$

$x+3y=23$

solving by the elimination method

$\begin{bmatrix}7x-y=51\\ x+3y=23\end{bmatrix}$

$\mathrm{Multiply\:}x+3y=23\mathrm{\:by\:}7\:\mathrm{:}\:\quad \:7x+21y=161$

$\begin{bmatrix}7x-y=51\\ 7x+21y=161\end{bmatrix}$

$7x+21y=161$

$-$

$\underline{7x-y=51}$

$22y=110$

$\begin{bmatrix}7x-y=51\\ 22y=110\end{bmatrix}$

now solving for y

$22y=110$

$\mathrm{Divide\:both\:sides\:by\:}22$

$\frac{22y}{22}=\frac{110}{22}$

$y=5$

$\mathrm{For\:}7x-y=51\mathrm{\:plug\:in\:}y=5$

$7x-y=51$

$7x-5=5$

$7x=56$

$\mathrm{Divide\:both\:sides\:by\:}7$

$\frac{7x}{7}=\frac{56}{7}$

$x=8$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=8,\:y=5$

7 0

3 years ago

A leaking pond looses 18 gallons of water in 34 hours , how many gallons will be left after 41 hours

Ann [662]

The amount of water left = 21.3 gallons.

We have a leaking pond which looses 18 gallons of water in 34 hour.

We have to determine how many gallons of water will be left after 41 hours.

<h3>What do you understand by gallon?</h3>

The gallon is a unit of volume in imperial units and United States customary units.

I gallon = 231 cubic inches = 3.785411784 liters.

According to question, we have -

Amount of water lost by the pond in 34 hours = 18 gallons

Therefore -

Amount of water lost by the pond in 1 hour = $\frac{18}{34}$

So, the amount of water loosed by the pond in 41 hours = $\frac{18}{34}\times 41$ = 21.3

Hence, the amount of water left = 21.3 gallons.

To solve more questions on Quantity Measurements , visit the link below-

brainly.com/question/1153577

#SPJ1

3 0

2 years ago

In the diagram, AB is parallel to DE. Also, DE is drawn such that the length of DE is half the length of AB. If sin A = 0.5, the

Anika [276]

I believe it is C, there is a geometric law that states that the opposite angles across a line with both going into parallel lines will be the same angle. Rather confusing but a video online would likely explain it better than anyone could here.

3 0

3 years ago

Read 2 more answers

You bike 9.8 miles in 1.4 hours at a steady rate.What equation represents the proportional relationship between the x hours you

AlexFokin [52]

Answer:

The equation is $\frac{x}{y}= 8$