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melamori03 [73]
3 years ago
6

Some please help answer this step by step

Mathematics
1 answer:
egoroff_w [7]3 years ago
8 0
It might be wrong but this is how i solved it: i used the elimination method to solve this and got x is 3-4y and y is all real numbers
first multiply the top equation by 5 and then you get:
5x+20y=15
-5x-20x=-15
since all the numbers are canceled out it is all real numbers.

then for x since you can’t substitute the y back in i just did:
x=3-4y
i just moved over the 4y

and to prove it you can say you substituted several points and they all worked
hope this helped let me know if you have any questions
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What multiplies to -26 and adds to -25
jeka57 [31]

Answer:

1 and -26

Step-by-step explanation:

Consider the factors of 26 (because the two numbers have to multiply to -26). These are: 1 and 26, 2 and 13.

2 and 13 cannot be added or subtracted from one another to get -25, but 1 and 26 can, or rather 1 and -26.

7 0
3 years ago
<-- Answer this without trolling and ill give you 50 points next question
mel-nik [20]

Answer:

here u go

Step-by-step explanation:

Table 1 . Perimeter Formulas

Shape Formula Variables

Square P=4s s is the length of the side of the square.

Rectangle P=2L+2W L and W are the lengths of the rectangle's sides (length and width).

Triangle a+b+c a,b , and c are the side lengths.

30 + 20 + 16 + 5=  71  

30 + 30 + 16 + 16 = 92

5+4+5+4= 18  \

92+18 =110

8 0
3 years ago
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5x-3(x-2)=10+x please solve for x
Serggg [28]

Answer:

5x-3(x-2)=10+x

Step-by-step explanation:

the is anserw is x=4

8 0
3 years ago
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Identify the vertex and
stiv31 [10]

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5 0
3 years ago
If someone helps me I’ll give brainless
Sunny_sXe [5.5K]

Answer:

128

Step-by-step explanation:

The two angles form a straight line so they add to 180

2m+62  + 3m +143 = 180

Combine like terms

5m+205=180

Subtract 205 from each side

5m+205-205=180-205

5m = -25

Divide by 5

5m/5 = -25/5

m = -5

We want to find the angle so we substitute the value of m into the the formula for the angle.

< RBM =3m +143 = 3(-5) +143 = -15+143 =128

6 0
3 years ago
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