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Setler [38]
3 years ago
9

Determine whether each equation is an identity or whether it has no solution. 6x+1=6x-8

Mathematics
2 answers:
Tatiana [17]3 years ago
5 0
Minus 6x both sides
1=-8
false
no soluion
erma4kov [3.2K]3 years ago
3 0

no soltion to this question sorry

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1) 2x – y = 1
aleksandrvk [35]

Answer:

1) (2, 3)

2) (2, -5).

Step-by-step explanation:

2x – y = 1

2x +2y = 10   Subtract to eliminate  the 2x:

2x - 2x - y - 2y = 1  - 10

-3y = -9

y = 3.

Plug this into the first equation:

2x - 3 = 1

2x = 4

x = 2.

2)

5x – y =15

x + y = -3     Adding to eliminate y:

5x + x - y + y = 15 + -3

6x = 12

x = 2

Plug this into the first equation:

5(2) - y = 15

-y = 15 - 10 = 5

y = -5.

6 0
3 years ago
Pls answer this is due in 30 minutes
ziro4ka [17]

Answer:

1a) t = 0.17b

1b) $36.03

2) 51,167.50

Step-by-step explanation:

1a) 17% converted to a decimal (divide by 100) = 0.17. Multiply that by the amount of the bill (before tipping) to get the amount of the tip

1b) The bill of $248 represents the entire bill (100%) plus the tip amount (17%) which makes 117%. As a decimal, this is 1.17.

To find what the cost was without the tip, divide the bill total by 1.17

248/1.17 = 211.97. That was the bill before the tip was added.

248-211.97 = 36.03 was the tip added.

2) 5.5% converted to a decimal is 0.055

0.55 x 48,500 = 2667.50

$2,667.50 + $48,500 = 51,167.50

Or, you can use what we did in 1b, and his new salary is 1.055 times 48,500

1.055 x 48,500 = 51,167.50

6 0
3 years ago
What is the slope of the line that contains these points? (15,-10) (17,2) (19,14) (21,26)
umka2103 [35]
The slopes of the line is 6
6 0
2 years ago
The altitude of a triangle forms a perpendicular line.<br><br> False<br><br> True
Ksivusya [100]
True is the answer for this question
4 0
3 years ago
I'm not exactly sure how to solve this or what the answer is. ​
arlik [135]

Answer:

9x^2-49

Step-by-step explanation:

FOIL

8 0
3 years ago
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