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notsponge [240]
2 years ago
12

HELP ILL GIVE YOU 15 POINTS !!!!!! ill mark you as brainliest too if its right

Mathematics
2 answers:
lesya692 [45]2 years ago
8 0

Answer:

B.

Step-by-step explanation:

\frac{2}{5} *4=\frac{8}{5}x

\frac{2}{5} *-8=-\frac{16}{5}

ankoles [38]2 years ago
5 0

Answer:

b

Step-by-step explanation:

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Please anybody help please
wel

Answer:

x= -3 and y = 6

Step-by-step explanation:

so basically what you are trying to do is reduce into finding x and y

what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which

so,...

we can do

either 20x or 15y

we will go with the smallest 15y

so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second

5 x 5x+3y=3 --> 1

3 x 4x+5y=18 --> 2

we then get

25x+15y = 15 -->1

12x + 15y = 54 -->2

then now that you have the same Y values you can subtract ! which cancels out both the 15y

25x+15y = 15 -->1

- 12x + 15y = 54 -->2

13x =-39

so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with  !

x = -3

5(-3) +3y =3

-15 + 3y = 3

3y = 3+15

3y=18

y = 6!

5 0
2 years ago
What is the answer to<br> 2x squared?
anzhelika [568]

Answer:

it’s just 2x^2

it’s not factorable

6 0
2 years ago
,,sarah is building a birdhouse the nail she uses are one inch long.the wood board is 1 foot long . how many times smaller are t
tamaranim1 [39]
The board is 12x larger in length than the nails. (Since the width of the board and nails are unknown, I am assuming you mean the length, not area difference)
3 0
3 years ago
Read 2 more answers
What is the probability of picking a purple marble and rolling an odd number?
Lostsunrise [7]
5/11 for the marble and ½ for dice
6 0
2 years ago
Read 2 more answers
Is -3 plus pi a rational number or a irrational number
sdas [7]

Answer:

irrational

Step-by-step explanation:

An irrational number has an endless number of digits to the right of the decimal

8 0
3 years ago
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