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4 years ago

Ethan is 40 years old. His son is 12 years old.

Mathematics

2 answers:

larisa [96]4 years ago

4 0

20 years in the future......

kykrilka [37]4 years ago

3 0

40-x / 12-x = 5
40-x = 5 * (12-x)
40-x = 60 - 5*x
5*x-x = 60 - 40
4*x=20
x=5

It was 5 years ago. Ethan was 35 and son was 7.

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AlekseyPX

Answer:

The number of rolls = 36

Step-by-step explanation:

Thinking process:

A die has six sides (6).

Thus, the probability of striking a 6 is $\frac{1}{6}$

Let the number or sixes be 2

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4 years ago

Simplify (8-7i)(-6+i)

Mrac [35]

Answer:

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Step-by-step explanation:

Simplify the following:

(-7 i + 8) (i - 6)

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-6×8 = -48:

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-7 (-6) = 42:

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-7 i×i = -7 i^2:

-48 + 8 i + 42 i + -7 i^2

i^2 = -1:

-48 + 8 i + 42 i - 7-1

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Answer: 50 i - 41

6 0

3 years ago

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fredd [130]

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$\dfrac{\partial F}{\partial y}=4x^2y^3+\dfrac{2y}{x+y^2}=4x^2y^3+\dfrac{2y}{x+y^2}+f'(y)$

$f'(y)=0\implies f(y)=C$

$\implies F(x,y)=x^2y^3+\ln(x+y^2)=C$

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3 years ago

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saveliy_v [14]

Answer:

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3 years ago

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MAVERICK [17]

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4 years ago