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baherus [9]
2 years ago
11

2x - y = 8 x - 4y = -3

Mathematics
2 answers:
mylen [45]2 years ago
7 0

Answer:

X = 5

Y = 2

Step-by-step explanation:

y=2x-8

x-4(2x-8)=-3 -> x-8x+32=-3 -> -7x = -35 -> x=-35/-7 = 5

x=5 -> y=2x-8 -> y=2(5)-8=2

Lostsunrise [7]2 years ago
5 0

Answer:

x=5  y=2

Step-by-step explanation:

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46 2/3% of 28 please i need to know answer an work
Bogdan [553]

First, it would help to put 46 and 2/3 into an improper fraction: 140/3.

Then, since this is a percent, we put that improper fraction over 100: (140/3)/100 = 140/300.

Finally, we multiply this answer by 28 since "of" means multiply:

(140/300) * 28 = 196/15 = 13 1/15

8 0
3 years ago
Find the area of the shaded region. Round your answer to the nearest tenth. 9 m 20 9 m area aboutm? pls explain how.
Alenkinab [10]

Answer:

The area of the shaded region is 17.4 square meters.

Step-by-step explanation:

Since the shaded region in the center equals the remainders of a circle, the area of a square equals its side squared, and the area of a circle equals π times the radius squared, for To determine the area of the shaded region, the following calculations should be performed:

(9 ^ 2) - (π x (9/2) ^ 2) = X

81 - (π x 4.5 ^ 2) = X

81 - (3.141 x 4.5 ^ 2) = X

81 - 3.141 x 20.25 = X

81 - 63.6 = X

17.4 = X

Thus, the area of the shaded region is 17.4 square meters.

5 0
3 years ago
Graph the image of the given triangle under a dilation with a scale factor of and center of dilation (0, 0)
timurjin [86]

Step-by-step explanation:

7 0
3 years ago
Find the vector, not with determinants, but by using properties of cross products. k × (i − 3j)
sergey [27]
\mathbf k\times(\mathbf i-3\mathbf j)=(\mathbf k\times\mathbf i)-3(\mathbf k\times\mathbf j)
=\mathbf j-3(-\mathbf i)
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3 0
3 years ago
I have two marks more than you do and the sum of both our marks is equal to 14 what are our marks
svet-max [94.6K]

your marks 9 my marks 5

Step-by-step explanation:

1/2 of 14 = 7

7 + 2 = 9

14 - 9 = 5

so your marks are 9 and mine are 5

Hope this helped ..

5 0
2 years ago
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