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lilavasa [31]
2 years ago
8

3. Ying Yu turned 22 this year. In 8 years, she will be three times as old as her little brother will be then. How old is her li

ttle brother now? Answer​
Mathematics
1 answer:
kirill115 [55]2 years ago
8 0

Answer:

He is 2 years old.

Step-by-step explanation:

She is 22, in 8 years she will be 30. 30 is 3×10. At that time, her brother will be 10; that is 8 years from now. So now, the little brother is 10-8 = 2 years old.

If you must show algebra work:

x = brother's age now.

x+8=brother's age in 8 years.

YingYu's age in 8 years = 3 × brother's age in 8 years

22+8 = 3(x+8)

30 = 3x +24

6 = 3x

2 = x

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6 buses with 32 students per bus.....6 x 32 = 192 students

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3 years ago
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-9T means -9 x T
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3 years ago
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Answer:

1,2 and 4 are conservatives

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Step-by-step explanation:

We calculate  the Curl F

Remember that:

        Curl F = <\frac{dFz}{dy} - \frac{dFy}{dz}, \frac{dFz}{dx} - \frac{dFx}{dz}, \frac{dFy}{dx} - \frac{dFx}{dy}>

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  f(x,y,z) = -3x^{2} +5xy + 5y^{2}

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2. Curl F = < 0, 0 ,0>

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3. Curl F = <0 ,0, 10+3xsin(y) - (-cos(y))>

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3 years ago
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Help please, I will give brainliest :)
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Answer/Step-by-step explanation:

2) There is a cluster, and as x increases, y increases.

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