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pav-90 [236]
2 years ago
6

What is the solution to the system of equations? y=2x-7 y=-x+5

Mathematics
1 answer:
exis [7]2 years ago
3 0

Answer:

(4, 1 )

Step-by-step explanation:

y = 2x - 7 → (1)

y = - x + 5 → (2)

substitute y = 2x - 7 into (2)

2x - 7 = - x + 5 ( add x to both sides )

3x - 7 = 5 ( add 7 to both sides )

3x = 12 ( divide both sides by 3 )

x = 4

substitute x = 4 into either of the 2 equations

substituting into (2)

y = - 4 + 5 = 1

solution is (4, 1 )

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Y=2/3x+1

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If there is a 70% chance of rain tomorrow and a 50% chance of wind and rain,
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Answer:

71%

Step-by-step explanation:

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lutik1710 [3]

Answer: each guest gets 4.19 cm²

Step-by-step explanation:

The cake is a circle. The area which he cuts for himself is a sector with a central angle of 120 degrees. The formula for determining the area of a sector is expressed as

Area of sector = θ/360 × πr²

Where

θ represents the central angle

π is a constant whose value is 3.14

r represents the radius of the circle.

From the diagram,

r = 4cm

Therefore, area of the cake that he cut for himself is

120/360 × 3.14 × 4²

= 16.75 cm²

The total area of the cake is

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8 0
3 years ago
You got 8 correct out of 9 points.
kkurt [141]
Are you looking for the percentage? If you are, then you just have to find 8/9, which is about 0.89, or 89%.
4 0
3 years ago
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