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sveta [45]
3 years ago
9

What is the value of x if 5x+6=8?​

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

x=2/5

Step-by-step explanation:

5x+6=8

  • 5x=8-6
  • 5x=2
  • x=2/5
mariarad [96]3 years ago
8 0

5x+6=8

move +6 to the other side

sign changes from +6 to -6

5x+6-6=8-6

5x=8-6

5x=2

divide both sides by 5 to get x by itself

5x/5=2/5

Answer:

x=2/5

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The refreshment stand for the school play needs to make $330.They sell drinks for $1.50 and snacks for $2.50.If they sell 45 dri
choli [55]

Answer:

105 snacks

Step-by-step explanation:

$330=45 drinks at $1.50 and x snacks at $2.50.

330=45(1.50)+2.50x

330=67.5+2.5x

2.5x=262.5

x=105 snacks

6 0
3 years ago
What is the solution set of x2 + y2 = 26 and x − y = 6? A. {(5, -1), (-5, 1)} B. {(1, 5), (5, 1)} C. {(-1, 5), (1, -5)} D. {(5,
Rus_ich [418]
He two equations given are
x^2 + y^2 = 26
And
x - y = 6
x = y +6
Putting the value of x from the second equation to the first equation, we get
x^2 + y^2 = 26
(y + 6) ^2 + y^2 = 26
y^2 + 12y + 36 + y^2 = 26
2y^2 + 12y + 36 - 26 = 0
2y^2 + 12y + 10 = 0
y^2 + 6y + 5 = 0
y^2 + y + 5y + 5 = 0
y(y + 1) + 5 ( y + 1) = 0
(y + 1)(y + 5) = 0
Then 
y + 1 = 0
y = -1
so x - y = 6
     x + 1 = 6
x = 5
Or
y + 5 = 0
y = - 5
Again x = 1
So the solutions would be (-1, 5), (1 , -5). The correct option is option "C".

4 0
3 years ago
Read 2 more answers
Please help :(<br><br>thank you!
harina [27]

Answer:

pls stop deleting my answers brainly thx. also its b! ^-^

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Point Q is plotted on the coordinate grid. Point P is at (10, −20). Point R is vertically above point Q. It is at the same dista
bixtya [17]

Answer:

Point R is at (−20, 10), a distance of 30 units from point Q

Step-by-step explanation:

Q has coordinates (-20,-20).

P has coordinates (10,-20)

Since point R is vertically above point Q, it will have the same x-coordinate as Q.

Let R have coordinates (-20,y).

It was given that;

|RQ|=|PQ|

\Rightarrow |y--20|=|10--20|

\Rightarrow y+20=10+20

\Rightarrow y=10+20-20

\Rightarrow y=10.

The coordinates of R are (-20,10).

The dstance from Q is 30 units.

3 0
3 years ago
Read 2 more answers
If anyone could help that would be greatly appreciated!
Serggg [28]

B. rational means it does not go on forever.

4 0
3 years ago
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