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Anna007 [38]
4 years ago
12

2х + Зу = 9

Mathematics
1 answer:
umka2103 [35]4 years ago
5 0

Answer:

3

Step-by-step explanation:

Given the 2 equations

2x + 3y = 9 → (1)

- 2x + 2y = 6 → (2)

Adding the 2 equations term by term will eliminate x

(2x - 2x) + (3y + 2y) = (9 + 6), that is

5y = 15 ( divide both sides by 5 )

y = 3

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Sphinxa [80]

Answer:

Hence the new height  is 3 times the original height .(h1=3h)

Step-by-step explanation:

Given:

A cone with  has height and base with radius r .

To Find:

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Solution:

Consider as cone with height h base radius r, and volume v

Here given that only height changes for the cone  i.e. r remains the unchanged or same or constant

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Here V is directly proportional to h i.ee pie ,3 and r being constant

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4 0
3 years ago
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Step-by-step explanation:

4 0
2 years ago
What is the value for y?
Ivenika [448]
This triangle has 60 degrees already. Remember that the sum of all triangles have to be 180.
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Answer:

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