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sashaice [31]
3 years ago
6

Adam says he can walk 20 feet to the left, then 20 feet to the right and be back in his original position. Is Adam correct? Why

or why not?
Mathematics
2 answers:
Alex787 [66]3 years ago
6 0
Yes Adam is correct because he went 20ft to the left (20) and the 20ft to the right (-20) if you add these two numbers together 20+(-20) it would equal 0. I hope this helped ^^
Nady [450]3 years ago
5 0
Yes because if you add 20 to 0 then take 20 from 20 you end up with 0 again, 0 being where you started.
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Answer: x=27

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Fantom [35]

Answer:

y = -2/3x + 6

Step-by-step explanation:

To find the slope, find how much y changes in proportion to x. Here, when x changes by 1, y changes by -2/3. So, the number before x is -2/3.

To find the y-intercept, we need to find what y will be when x is 0. Since we know that when x is 1, y is 16/3, and when x decreases by 1, y increases by 2/3. So, when x is 0, y is 16/3 + 2/3, which is 18/3, or 6.

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3 years ago
Leticia is paid $672 weekly. What is her annual salary?
denpristay [2]

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3 years ago
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I'm not sure where to start and how to differentiate this.
Mazyrski [523]
The picture is not clear. let me assume y = (x^4)ln(x^3)

product rule :
d f(x)g(x) = f(x) dg(x) + g(x) df(x)

dy/dx = (x^4)d[ln(x^3)/dx] + d[(x^4)/dx] ln(x^3)
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look at d[ln(x^3)/dx]
d[ln(x^3)/dx]
= d[ln(x^3)/dx][d(x^3)/d(x^3)]
= d[ln(x^3)/d(x^3)][d(x^3)/dx]
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... chain rule (in detail)

end up with
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5 0
3 years ago
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nevsk [136]

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Boys : girls=7:1

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Total number of pupils=2y+66

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y=1/8 x (2y+66)

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Collect like terms

8y-2y=66

6y=66

Divide both sides by 6

6y/6=66/6

y=11

The number of girls is 11

4 0
2 years ago
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