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3 years ago

(3x+2) and (5x-6) solve for x

Mathematics

1 answer:

HACTEHA [7]3 years ago

6 0

Answer:

x=3X 2 + 5x -6

Step-by-step explanation:

3X2 + 5X-6= 3X2 + 5X 6

X=3X2 +5X -6

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72 is 75% of what number?

miss Akunina [59]

i belive let me know i f im incorrect

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3 years ago

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Will mark brainlist! Andrea spent $2 to make 10 prints from a photo both. Later, she spent $6 to make 30 prints. Did she get a b

notka56 [123]

Answer:

She got an equally good deal both times

Step-by-step explanation:

$\frac{2}{20}$ can be simplified to make $\frac{1}{5}$

$\frac{6}{30}$ can be simplified to make $\frac{1}{5}$

they are the same

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2 years ago

You downloaded a video game to your computer.You have 60-minute free trail of the game.It takes 5 minutes to set up the game and

Lorico [155]

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3 years ago

A car travels at a constant speed for 2 hours. what is that speed miles per hour

earnstyle [38]

Answer:

Distance/2 hours

Step-by-step explanation:

Distance=Speed times Time, and since the time is 2 hours, we can say Distance=Speed times 2 hours.

Now we divide both sides by 2 hours, resulting in Distance/2 Hours= Speed.

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Please consider a brainliest!

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3 years ago

At Elisa's printing company, there are two kinds of printing presses: Model A, which can print 70 books/ day, and model B, which

Dmitrij [34]

Answer:

9 Model As.

Step-by-step explanation:

Let A represent Press A and let B represent Press B.

So, they own 14 total presses. This means that:

$A+B=14$

They can print 905 books per day, in other words, since A prints 70 per day and B prints 55 per day:

$70A+55B=905$

This is now a system of equations. Solve by substitution. From the first equation, subtract B from both sides:

$A=14-B$

Substitute this into the second equation: "

$70(14-B)+55B=905$

First, we can divide everything by 5 to simplify things:

$14(14-B)+11B=181$

Distribute the left:

$196-14B+11B=181$

Combine like terms:

$-3B+196=181$

Subtract 196 from both sides:

$-3B=-15$

Divide both sides by -3

$B=5$

So, the company has 5 Model B presses.

Which means that the company has 14-5 or 9 Model A presses.

And we're done!

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3 years ago