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belka [17]
3 years ago
5

Direct Variation.¯\_(ツ)_/¯

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
5 0

Answer:

y = 1/6

Step-by-step explanation:

direct variation

y =kx

substitute in what we know to find k

1/2 = k*3

solve for k

divide by 3

1/2 /3 = k

1/6 = k

substitute k into the direct variation equation

y = 1/6 x

let x = 1

y = 1/6 *1

y = 1/6

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SOLVE <br><br> x + 3y = -1<br><br> y = x - 7<br><br><br><br><br><br> Write the solution below.
ki77a [65]

Answer:

x= 5 ........................ .......

7 0
2 years ago
I will mark brainliest please help ​
kirill115 [55]

Answer:

15 cups

Step-by-step explanation:

The formula to find cups from quarts C = Q * 4, where c is how many cups, and Q how many quarts. To find how many cups are in a quart, simply multiply the number of quarts by 5. In this case, there are 3 3/4 quarts of coffee, multiply that by 5, and you would get 15 cups of coffee!

5 0
3 years ago
Find the volume of a cylinder with a radius of 4.8 cm and a height of 14.6 cm. [Use it =
juin [17]

Answer:

1056.24 cm^3

Step-by-step explanation:

The volume of a cylinder is \pi r^2h. The problem says to use \pi=3.14

Plug in your numbers 3.14*4.8^2*14.6=1056.24

6 0
2 years ago
Solve the<br>Pi<br>Simultaneous equation<br>using elimination<br>3x+2y=2<br>2x+2y =-7​
torisob [31]

Answer:

x= 9

y=-12.5

Step-by-step explanation:

3x+2y = 2×2

2x+2y =-7×3

6x+4y =4

- 6×+6y =-21

-2y =25

y=-12,5

2x+2(-12,5)= -7

2x+-25= -7

2x= -7+25

2x/2=18/2

x= 9

5 0
3 years ago
Aight I think I just figured out this pyramidal sequence thing. You're going up by perfect numbers right, like 4, 9, 16, 25. Bec
muminat

Answer:  Close.  Your observation is correct. When you see that the difference between two numbers in the sequence is a perfect square, you are looking at a pyramidal sequence

1² = <u>1 </u> top of pyramid

1 + 2² = <u>5</u>   total in top 2 layers

1 + 2² + 3² = <u>14</u> total in top 3 layers

1 + 2² + 3² + 4² = <u>30</u> total in the top 4 layers.

1 + 2² + 3² + 4² + 5² = <u>55</u>  total in the top 5 layers.

Layer 6 is 6² more, 91

Layer 7 is 7² more so, 140

I think you got it.

Step-by-step explanation:  The numbers are like when you keep adding the layers in a pyramid, and the next number is the total of the previous layers plus the square of the next layer number.

4 0
3 years ago
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