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Ivenika [448]
3 years ago
7

Help Asap plz!!!! Thx Give 20 points

Mathematics
1 answer:
Arisa [49]3 years ago
4 0

Answer:

(1,2) is a solution to both equations

Step-by-step explanation:

To determine if (1,2) is a solution to both equations, substitute into the equation and see if it is true

2x+y =4

2(1) + 2 =4

2+2 =4

4=4

true


y =3x-1

2 = 3(1) -1

2 =3-1

2=2

true

Since both statements are true

(1,2) is a solution to both equations

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The sum of a number, n, and a number 5 larger than it is 41. Which of the following equations could be used
Afina-wow [57]
I think it (3) one I’m not sure
3 0
3 years ago
Tiana's math test score are 85 and 91 . she has one more test left. in order to earn and a, her average test score must be at le
pentagon [3]
You have no choices listed but here's the answer:
(85 + 91 + x) / 3 = 94
Multiplying both sides by 3
85 + 91 + x = 282
x = 106
In order for her to get a 94 average she would need a mark of 106 on her next test.


3 0
3 years ago
Read 2 more answers
Jodie has 68 red marbles and 272 blue marbles. What percent of Jodie’s marbles are red?
Arlecino [84]

Answer:

20%

Step-by-step explanation:

To do this we need to find the total number of marbles

             

272 + 68 ->  340

Now we divide 340 by 68 to get

68/ 340 = .2

Multiply by 100 because percent means PER 100 so to get this decimal in percent form multiply by 100

.2 * 100 = 20%

20% of Jodie's marbles are red

7 0
2 years ago
Can someone help me please?
Alik [6]

Answer:

C.

Step-by-step explanation:

The reds are counting up in whole numbers by one integer.

Hope this helps!

If not, I am sorry.

5 0
1 year ago
Math question please show work for brainliest :)
katrin2010 [14]

|x+8| = 1

x + 8 = 1

x = -7


-(x+8) = 1

-x - 8 = 1

-x = 9

x = -9

Answer

D. x = -7, - 9

3 0
3 years ago
Read 2 more answers
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