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3 years ago

What is this equation problem 3n+16=7n

Mathematics

2 answers:

Monica [59]3 years ago

7 0

If you mean what is n, then n = 4

galben [10]3 years ago

7 0

So I'm pretty good at these, so I'll put it in the best detail I can. I'm guessing you need to solve for n.

So here's your problem:
3n+16=7n

First off, you should switch it around so you don't have to deal with negatives:
7n=3n+16

Subtract 3n from both sides:
4n=16

Divide both sides by 4
n=4

That would be your answer, n=4. Hope this helps, have a wonderful day!

(brainliest is always appreciated)

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PLEASE HELP!! URGENT!!!! UNIT TEST!!!!

slavikrds [6]

ANSWER

$y=-\frac{4}{3}x+\frac{16}{3}$

$3y+4x=16$

EXPLANATION

Let us find the gradient of the line:

$-3x+4y=4$ by rewriting it in the slope intercept form.

$\Rightarrow 4y=3x+4$

We divide through by 4 now;

$\Rightarrow y=\frac{3}{4}x+1$

This is now in the form;

$y=mx+c$

where

$m=\frac{3}{4}$ is he slope.

This implies that the slope of the line that is perpendicular to this line will be the negative reciprocal of $m=\frac{3}{4}$ .

Thus the perpendicular line has slope,

$m=\frac{-1}{\frac{3}{4}}= -\frac{4}{3}$ .

Let the perpendicular line have equation,

$y=mx+c$

When we substitute the slope we have;

$y=-\frac{4}{3}x+c$

We substitute the point. $(4,0)$ to find c.

$0=-\frac{4}{3}(4)+c$

$0=-\frac{16}{3}+c$

$\frac{16}{3}=c$

We substitute c to obtain;

$y=-\frac{4}{3}x+\frac{16}{3}$

$3y+4x=16$

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3 years ago

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Shirley is decorating the gym for a party. She has 5 rolls of blue streamer and 8 rolls of green streamer. If each roll of blue

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Answer: 1145 feets

Step-by-step explanation:

The total feet of streamer that Shirley have to decorate with will be the addition of the total roll of blue streamer plus the total roll of green streamer. This will be:

= 5(93) + 8(85)

= 465 feet + 680 feet

= 1145 feets of streamer.

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2 years ago

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saveliy_v [14]

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