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ANEK [815]
3 years ago
12

Please help me solve this! also this is proportions by parts

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

dat easy

Step-by-step explanation:

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Someone pls help me due in 30 min. Given that x and y show inverse variation, complete the table.
aivan3 [116]

Answer:

1st blank=y_{1}

2nd blank=x_{1}

3rd blank= y_{2}

3*27=81

so 1*y_{1}=81

hence y_{1}=81

9* x_{1}= 81

x_{1}=9

27*y_{2}=81

y_{2}=3

Thus solved.

<em>Hope this helps.</em>

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3 years ago
The general equation for the geometric sequence -1, -2, -4, ... is a n = -1 · 2 n - 1 .
katrin2010 [14]

\text{First term,}~ a = -1\\\\\text{Common ratio,}~ r = 2\\\\\text{Nth term} = ar^{n-1}=-1\cdot 2^{n-1}\\

4 0
2 years ago
Help help please!!
andrey2020 [161]

Answer:

1). y = -7/5x - 4

2). y = 1/5x - 5

Step-by-step explanation:

In this question, we have to write the slope-intercept form of the given information.

Slope intercept form is: y = mx + b

Our "m" value is our slope and our "b" value is our y-intercept.

With that knowledge, we can plug in our given information to the slope-intercept equation:

1) slope = -7/5, y-intercept = -4

Plug -7/5 to "m" and -4 to "b"

y = -7/5x - 4

2) slope = 1/5, y-intercept = -5

Plug 1/5 to "m" and -5 to "b"

y = 1/5x - 5

6 0
3 years ago
Kerrie uses the work shown below to determine 35% of 280.
lys-0071 [83]

For this case we must find 35% of 280.

Kerrie gets 10% and then 25%. So:

10% of 280:

280 ------------> 100%

x -----------------> 10%

Where "x" represents the amount given by 10% of 280.

x = \frac {10 * 280} {100}\\x = 28

Thus, 10% of 280 is 28.

Now, we find 25% of 280:

280 ------------> 100%

x -----------------> 25%

Where "x" represents the amount given by 25% of 280.

x = \frac {25 * 280} {100}\\x = 70

Thus, 25% of 280 is 70.

So we have that 35% of 280 is given by:

28 + 70 = 98

So, Kerrie's solution is correct.

Answer:

Option A

6 0
3 years ago
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Defina qué es el producto de un vector por un escalar
Ostrovityanka [42]

Answer: c

Step-by-step explanation:

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2 years ago
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