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Hitman42 [59]
3 years ago
7

Andell is 9 years older than Arnez. arnez is 3 years younger than Marianne. the sum of their ages is 24. what is the age of each

child
Mathematics
1 answer:
Harman [31]3 years ago
5 0

Answer:

Arnez is 4. Andell is 13. Marianne is 7.

Step-by-step explanation:

Let x represent Arnez's age. If we write out an equation, we end up with this:

24 = (9 + x) + (x + 3) + x

24 = 9 + x + x + 3 + x

24 = (x + x + x) + (9 + 3)

24 = 3x + 12

24 - 12 = 3x + 12 - 12

12 / 3 = 3x / 3

4 = x

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The height to the base of an isosceles triangle is 12.4m, and its base is 40.6m. What are the measurement of the angles of the t
Vsevolod [243]

Answer:

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Step-by-step explanation:

The base angles can be found from the definition of the tangent function:

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  base angle = arctan(12.4/20.3) ≈ 31.418°

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The leg lengths can be computed from the Pythagorean theorem applied to the altitude and the half-base length.

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5 0
3 years ago
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Y varies directly with x. If y=25 when x=5, find y when x =-4<br><br>y =​
alina1380 [7]

Answer:

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Step-by-step explanation:

Given that y varies directly with x it means changing x will also cause change in y

Mathematically it can be written as:

y∝x

Removing the proportionality symbol

y = kx

Given y=25 when x=5 Putting the values

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We have to find the value of y when x = -4

Putting x=-4

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7 0
2 years ago
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pogonyaev

Answer:

-4

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2 years ago
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